Showing posts with label Cantonese. Show all posts
Showing posts with label Cantonese. Show all posts

Friday, 17 July 2026

Web Tutorial: NodeJS Chinese Name Transliterator

The Romanization of Chinese names have always been a subject of fascination for me. I've had Vietnamese colleagues and Chinese colleagues from Hong Kong and Taiwan. I've watched Korean dramas that were dubbed in Mandarin, and wondered what the original Korean names were.

Today, I want to present this tool I wrote in NodeJS - it accepts a single Chinese name, in Chinese characters, and provides transliterations of the name in various languages.

Setup

After installing my project using the node command, I installed Express and Handlebars.
npm install --save express
npm install --save express-handlebars


This is what exists in app.js, as a baseline. We load Express and Handlebars, and ensure that the view engine is Handlebars. We also ensure that main is the default layout, and we'll create that soon. We also declare assets as the folder where static content is served, and set the default page to serve the view for home. And then set the 404 and 500 pages. Lastly, we start the app up using the listen() method.

app.js
var express = require("express");

var app = express();

var handlebars = require("express-handlebars").create({defaultLayout:"main"});
app.engine("handlebars", handlebars.engine);

app.set("view engine", "handlebars");
app.set("port", process.env.PORT || 3000);

app.use(express.static("assets"));

app.get("/", (req, res)=> {
  res.render("home");
});

app.use((req, res, next)=> {
  res.status(404);
  res.render("404");
});

app.use((err, req, res, next)=> {
  res.status(500);
  res.render("500", { errorMessage: err.code });
});

app.listen(app.get("port"), ()=> {

});


This is the main layout file. Note the links to CSS and JavaScript. In the body, we have a div with id pnlContainer, which will contain the content of whatever page the app serves.

views/layouts/main.handlebars
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Chinese Name Transliterator</title>

    <link rel="stylesheet" type="text/css" href="css/styles.css">
    <script type="text/javascript" src="js/functions.js"></script>
  </head>
  <body>
    <div id="pnlContainer">
      {{{ body }}}    
    </div>
  </body>
</html>


Let's just create a very basic CSS file that only specifies font. We can add more later.

asset/css/styles.css
body
{
    font-size: 16px;
    font-family: georgia;
}


In the JavaScript, we'll just have one single function, to check if a string is made up of only Chinese characters. To do that, we use a Regular Expression of a range of Chinese characters, then use the test() method with name as the argument, returning the result. That's also incidentally the only JavaScript validation we'll need in here.

asset/js/functions.js
function isValidChineseName(name) {
    const re = /^[\u4E00-\u9FFF\u3400-\u4DBF\uF900-\uFAFF]+$/;
    return re.test(name);
}


Here's the view for 404s.

views/404.handlebars
<h1>404</h1>

<p>Not found!</p>


And for error 500s.

views/500.handlebars
<h1>500</h1>

<p>There was an error.</p>
<p><b>{{ errorMessage }}</b></p>


And here's the default page. You'll notice there is no form tag; we won't need one because I don't actually intend to do any form submission here. What we do have is a nice header, a div (id pnlSelection), a button (id btnTransliterate) and a span tag (id pnlError) for showing errors. And a script tag for more shenanigans later.

views/home.handlebars
<h1>Chinese Name Transliterator</h1>

<div id="pnlSelection">

</div>

<button id="btnTransliterate">TRANSLITERATE</button>
<span id="pnlError"></span>

<script>

</script>


In pnlSelection, we have two more divs. One contains a label, and the other contains a textbox. The id of the textbox is txtFullChineseName and it will have at most 4 characters, unless you feel like transliterating full Manchurian names or something.

views/home.handlebars
<h1>Chinese Name Transliterator</h1>

<div id="pnlSelection">
  <div><label for="txtFullChineseName">Full Chinese Name</label></div>
  <div><input id="txtFullChineseName" maxlength="4" /></div>

</div>

<button id="btnTransliterate">TRANSLITERATE</button>
<span id="pnlError"></span>

<script>

</script>


This probably looks a mess. Time for more CSS.


pnlContainer fits the full height of the window (thus 100vh), has a maximum width of 400 pixels, which will fit nicely on mobile, and is centered in the middle of the window via the margin property. Text is centered by default.

asset/css/styles.css
body
{
    font-size: 16px;
    font-family: georgia;
}

#pnlContainer
{
    min-height: 100vh;
    max-width: 400px;
    margin: 0 auto 0 auto;
    text-align: center;
}


pnlSelection is slightly more interesting. The display property is grid, which instantly turns it into a grid container. grid-template-columns has a value of "1fr 1fr" which basically means two by two, and I've specified a 10-pixel gap. The text-align property has been set to justify to offset the text centering of its parent.

asset/css/styles.css
body
{
    font-size: 16px;
    font-family: georgia;
}

#pnlContainer
{
    min-height: 100vh;
    max-width: 400px;
    margin: 0 auto 0 auto;
    text-align: center;
}

#pnlSelection
{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    text-align: justify;
}


Now for pnlError and the button. pnlError has red text. The button is pill-shaped and has large text. Nothing to see here, move along.

asset/css/styles.css
body
{
    font-size: 16px;
    font-family: georgia;
}

#pnlContainer
{
    min-height: 100vh;
    max-width: 400px;
    margin: 0 auto 0 auto;
    text-align: center;
}

#pnlSelection
{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    text-align: justify;
}

#pnlError
{
    font-size: 0.8em;
    font-weight: bold;
    color: #FF0000;
}

button
{
    width: 100%;
    height: 2em;
    margin-top: 2em;
    border-radius: 20px;
}


Time for a preview! So far so good.


We're not just going to have a Chinese name transliterated - we're also going to select the languages it is transliterated in. For that, let's created options.js in the data folder of the assets folder. We basically export an array of objects. Each object has two properties - name and label. These are the five romanization systems to be transliterated in - Wade-Giles, Hokkien, Jyutping, Hangul and Vietnamese.

assets/data/options.js
const options = [
{
    value: "wade-giles",
    label: "Wade-Giles",
},
{
    value: "hokkien",
    label: "Hokkien",
},
{
    value: "jyutping",
    label: "Cantonese",
},
{
    value: "hangul",
    label: "Korean",
},
{
    value: "vietnamese",
    label: "Vietnamese",
}
];

module.exports = options;


We also have to make sure it's available in the back-end. Declare options as what options.js exports, then pass it into home as options.

app.js
const options = require("./assets/data/options.js");
var express = require("express");

var app = express();

var handlebars = require("express-handlebars").create({defaultLayout:"main"});
app.engine("handlebars", handlebars.engine);

app.set("view engine", "handlebars");
app.set("port", process.env.PORT || 3000);

app.use(express.static("assets"));

app.get("/", (req, res)=> {
  res.render("home", { options: options });
});

app.use((req, res, next)=> {
  res.status(404);
  res.render("404");
});

app.use((err, req, res, next)=> {
  res.status(500);
  res.render("500", { errorMessage: err.code });
});

app.listen(app.get("port"), ()=> {

});


Now in the view, we want to iterate through options, which has been passed down to this view from app.js. For each option, we'll have a div and a span. The first div will contain a checkbox and label, with values reflecting those of the option. The span tag will have an id that is "result_" concatenated with the name property of the current element of options.

views/home.handlebars
<div id="pnlSelection">
  <div><label for="txtFullChineseName">Full Chinese Name</label></div>
  <div><input id="txtFullChineseName" maxlength="4" /></div>

  {{#each options}}
  <div>
     <label>
       <input type="checkbox" name="languages" value="{{value}}">
       {{label}}
     </label>
  </div>
  <div>
     <span class="txtResult" id="result_{{value}}"></span>
  </div>
  {{/each}}

</div>


That's how it looks like! We haven't styled the span tags yet, and they have no content at the moment, so they're invisible.


Now, we want to handle clicking! Here's some beginning code...

views/home.handlebars
<script>
document.getElementById("btnTransliterate").addEventListener("click", async () => {

});
</script>


And then we want to start with validation. First, we clear the contents of pnlError. If the string given is not a valid Chinese name (remember the function we created earlier?), we set the contents of pnlError to a message, then exit early.
<script>
document.getElementById("btnTransliterate").addEventListener("click", async () => {
  document.getElementById("pnlError").textContent = "";

  const name = document.getElementById("txtFullChineseName").value.trim();

  if (!isValidChineseName(name)) {
    document.getElementById("pnlError").textContent = "Please enter a Chinese name using Chinese characters only.";
    return;
  }

});
</script>


If no options are selected, we also set the error message and exit early. selectedOptions can be reused later.

views/home.handlebars
<script>
document.getElementById("btnTransliterate").addEventListener("click", async () => {
  document.getElementById("pnlError").textContent = "";

  const name = document.getElementById("txtFullChineseName").value.trim();

  if (!isValidChineseName(name)) {
    document.getElementById("pnlError").textContent = "Please enter a Chinese name using Chinese characters only.";
    return;
  }

  const selectedOptions = document.querySelectorAll("input[name='languages']:checked");

  if (selectedOptions.length === 0) {
    document.getElementById("pnlError").textContent = "Please select at least one transliteration option.";
    return;
  }

});
</script>


See what happens when the name contains anything that isn't Chinese.


Or when no option are checked. I'll be using this name as an example for the rest of this tutorial.


Then we declare properties, which really is a comma-separated string of all values selected. For this, we iterate through selectedOptions using the map() method, grabbing the value property values and appending them using the join() method.

views/home.handlebars
<script>
document.getElementById("btnTransliterate").addEventListener("click", async () => {
  document.getElementById("pnlError").textContent = "";

  const name = document.getElementById("txtFullChineseName").value.trim();

  if (!isValidChineseName(name)) {
    document.getElementById("pnlError").textContent = "Please enter a Chinese name using Chinese characters only.";
    return;
  }

  const selectedOptions = document.querySelectorAll("input[name='languages']:checked");

  if (selectedOptions.length === 0) {
    document.getElementById("pnlError").textContent = "Please select at least one transliteration option.";
    return;
  }

  let properties = [...selectedOptions]
  .map(x => `"${x.value}"`)
  .join(", ");

});
</script>


We'll create a prompt, prompt. For this, we want a valid JSON object that will contain named properties that the user has selected. So if the user checked on the checkboxes labelled "Cantonese" and "Korean", the resultant value inserted into prompt would be "jyutping,hangul".

views/home.handlebars
<script>
document.getElementById("btnTransliterate").addEventListener("click", async () => {
  document.getElementById("pnlError").textContent = "";

  const name = document.getElementById("txtFullChineseName").value.trim();

  if (!isValidChineseName(name)) {
    document.getElementById("pnlError").textContent = "Please enter a Chinese name using Chinese characters only.";
    return;
  }

  const selectedOptions = document.querySelectorAll("input[name='languages']:checked");

  if (selectedOptions.length === 0) {
    document.getElementById("pnlError").textContent = "Please select at least one transliteration option.";
return;
  }

  let properties = [...selectedOptions]
  .map(x => `"${x.value}"`)
  .join(", ");

  let prompt = `Return only a valid JSON object. The object should contain the following properties only: ${properties}. The value of each property should be the equivalent romanized version of the Chinese name "${name}" (without intonations) only. In the event of ambiguity, pick the first reasonable result.`;
});
</script>


Then we use a Try-catch block to send the prompt to the transliterate route using the asynchronous fetch() function. We'll display an error if there's one.

views/home.handlebars
<script>
document.getElementById("btnTransliterate").addEventListener("click", async () => {
  document.getElementById("pnlError").textContent = "";

  const name = document.getElementById("txtFullChineseName").value.trim();

  if (!isValidChineseName(name)) {
    document.getElementById("pnlError").textContent = "Please enter a Chinese name using Chinese characters only.";
    return;
  }

  const selectedOptions = document.querySelectorAll("input[name='languages']:checked");

  if (selectedOptions.length === 0) {
    document.getElementById("pnlError").textContent = "Please select at least one transliteration option.";
return;
  }

  let properties = [...selectedOptions]
  .map(x => `"${x.value}"`)
  .join(", ");

  let prompt = `Return only a valid JSON object. The object should contain the following properties only: ${properties}. The value of each property should be the equivalent English romanized version of the Chinese name "${name}" (without intonations) only. In the event of ambiguity, pick the first reasonable result.`;

  try {
    const response = await fetch("/transliterate", {
      method: "POST",
      headers: {
        "Content-Type": "application/json"
      },
      body: JSON.stringify({
        prompt: prompt
      })
    });
  } catch (err) {
    document.getElementById("pnlError").textContent = "An unexpected error occurred.";
    console.error(err);
  }

});
</script>


Now let's handle the transliterate route. First, we set up the api.js file. org and key are derived from the OpenAI API project you should have set up for this project. Obviously my org and key values aren't "xx", but you'll have to get your own.

api.js
module.exports = {
  org: "xx",
  key: "xx"
}


Now, in app.js, define api as the exported value from api.js. Ensure that app uses the json() method from express. That's what we'll use to parse. And then define the transliterate route. It's POST, and async.

app.js
const api = require("./api.js");
const options = require("./assets/data/options.js");
var express = require("express");

var app = express();

var handlebars = require("express-handlebars").create({defaultLayout:"main"});
app.engine("handlebars", handlebars.engine);

app.set("view engine", "handlebars");
app.set("port", process.env.PORT || 3000);

app.use(express.static("assets"));

app.get("/", (req, res)=> {
  res.render("home", { options: options });
});

app.use(express.json());

app.post("/transliterate", async (req, res) => {

});


app.use((req, res, next)=> {
  res.status(404);
  res.render("404");
});

app.use((err, req, res, next)=> {
  res.status(500);
  res.render("500", { errorMessage: err.code });
});

app.listen(app.get("port"), ()=> {

});


We have a Try-catch block here.
app.post("/transliterate", async (req, res) => {
  try {

  } catch (err) {
    console.error(err);
  
    res.status(500).json({
      success: false,
      error: err.message
    });
  }

});


We obtain prompt by getting it from the body object of the request, req. If prompt does not exist, we exit early with an error.

app.js
app.post("/transliterate", async (req, res) => {
  try {
    const prompt = req.body.prompt;
  
    if (!prompt) {
      return res.status(400).json({
        success: false,
        error: "Prompt is required."
      });
    }

  } catch (err) {
    console.error(err);
  
    res.status(500).json({
      success: false,
      error: err.message
    });
  }
});


So here, we create response. It is what's returned from running fetch() with OpenAI's API responses endpoint, The operation is a POST and the headers passed in are Authorization, which uses the key value from api; and Content-Type which is set to accept JSON.

app.js
app.post("/transliterate", async (req, res) => {
  try {
    const prompt = req.body.prompt;
  
    if (!prompt) {
      return res.status(400).json({
        success: false,
        error: "Prompt is required."
      });
    }
  
    const response = await fetch(
      "https://api.openai.com/v1/responses",
      {
        method: "POST",
        headers: {
          "Authorization": `Bearer ${api.key}`,
          "Content-Type": "application/json"
        }
      }
    );

  } catch (err) {
    console.error(err);
  
    res.status(500).json({
      success: false,
      error: err.message
    });
  }
});


Then in the body, we send a JSON-encoded string of an object containing the model and input. The model is "gpt-5" and the value for input is set to the string known as prompt. In effect, we're asking the API endpoint to provided romanizations for the provided Chinese name, in the various selected languages.

app.js
app.post("/transliterate", async (req, res) => {
  try {
    const prompt = req.body.prompt;
  
    if (!prompt) {
      return res.status(400).json({
        success: false,
        error: "Prompt is required."
      });
    }
  
    const response = await fetch(
      "https://api.openai.com/v1/responses",
      {
        method: "POST",
        headers: {
          "Authorization": `Bearer ${api.key}`,
          "Content-Type": "application/json"
        },
        body: JSON.stringify({
          model: "gpt-5",
          input: prompt
        })

      }
    );
  } catch (err) {
    console.error(err);
  
    res.status(500).json({
      success: false,
      error: err.message
    });
  }
});


Since we used await for the previous line, the next part will have response ready. If the ok property of response is false or does not exist, exit with an error.

app.js
app.post("/transliterate", async (req, res) => {
  try {
    const prompt = req.body.prompt;
  
    if (!prompt) {
      return res.status(400).json({
        success: false,
        error: "Prompt is required."
      });
    }
  
    const response = await fetch(
      "https://api.openai.com/v1/responses",
      {
        method: "POST",
        headers: {
          "Authorization": `Bearer ${api.key}`,
          "Content-Type": "application/json"
        },
        body: JSON.stringify({
          model: "gpt-5",
          input: prompt
        })
      }
    );
  
    if (!response.ok) {
      const errorText = await response.text();
  
      return res.status(response.status).json({
        success: false,
        error: errorText
      });  
    }

  } catch (err) {
    console.error(err);
  
    res.status(500).json({
      success: false,
      error: err.message
    });
  }
});


At this point, if there has been no early exit, that means the call was successful. We define data by converting it to JSON using the async method json(). Then we return the data. It looks convoluted right now because that's the way OpenAI wraps it - the text property of the first object of the content array, which in turn is the second element of the output array of data.

app.js
app.post("/transliterate", async (req, res) => {
  try {
    const prompt = req.body.prompt;
  
    if (!prompt) {
      return res.status(400).json({
        success: false,
        error: "Prompt is required."
      });
    }
  
    const response = await fetch(
      "https://api.openai.com/v1/responses",
      {
        method: "POST",
        headers: {
          "Authorization": `Bearer ${api.key}`,
          "Content-Type": "application/json"
        },
        body: JSON.stringify({
          model: "gpt-5",
          input: prompt
        })
      }
    );
  
    if (!response.ok) {
      const errorText = await response.text();
  
      return res.status(response.status).json({
        success: false,
        error: errorText
      });
    }
  
    const data = await response.json();

    res.json({
      success: true,
      result: data.output[1].content[0].text
    });

  } catch (err) {
    console.error(err);
  
    res.status(500).json({
      success: false,
      error: err.message
    });
  }
});


Back to the view! We define data as the JSON shape of response. If success was not defined, then we set the error message in pnlError and exit early.

home.handlebars
try {
  const response = await fetch("/transliterate", {
    method: "POST",
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      prompt: prompt
    })
  });

  const data = await response.json();

  if (!data.success) {
    document.getElementById("pnlError").textContent = data.error;
    return;
  }

} catch (err) {
  document.getElementById("pnlError").textContent = "An unexpected error occurred.";
  console.error(err);
}


Define transliterations. It'll be the object data's result object. Then we have txtResult, declared as a collection of all elements in the DOM using the CSS class txtResult.

home.handlebars
try {
  const response = await fetch("/transliterate", {
    method: "POST",
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      prompt: prompt
    })
  });

  const data = await response.json();

  if (!data.success) {
    document.getElementById("pnlError").textContent = data.error;
    return;
  }

  const transliterations = JSON.parse(data.result);

  const txtResult = document.getElementsByClassName("txtResult");

} catch (err) {
  document.getElementById("pnlError").textContent = "An unexpected error occurred.";
  console.error(err);
}


We convert it to an array, then run a forEach() to iterate through it. x is the current element. We get the id and strip "result_" from it to get the language that it's supposed to be in. Then from there, we populate x with its relevant transliteration, if it exists.

home.handlebars
try {
  const response = await fetch("/transliterate", {
    method: "POST",
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      prompt: prompt
    })
  });

  const data = await response.json();

  if (!data.success) {
    document.getElementById("pnlError").textContent = data.error;
    return;
  }

  const transliterations = JSON.parse(data.result);

  const txtResult = document.getElementsByClassName("txtResult");

  Array.from(txtResult).forEach((x) => {
    let propName = x.id.replace("result_", "");
    x.textContent = (transliterations[propName] ? transliterations[propName] : "");
  });

} catch (err) {
  document.getElementById("pnlError").textContent = "An unexpected error occurred.";
  console.error(err);
}


Try this! Enter a name. Then select a couple of languages. Let's try Wade-Giles, Cantonese and Korean.


It works! It takes a bit of time, but it works. In Wade-Giles, the name is "Tu Yu-lei", and so on.



Here's an improvement...

Add this to the layout file. It's another div, id pnlOverlay. In it, you have a message and an hourglass icon.

views/layouts/main.handlebars
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Chinese Name Transliterator</title>

    <link rel="stylesheet" type="text/css" href="css/styles.css">
    <script type="text/javascript" src="js/functions.js"></script>
  </head>
  <body>
    <div id="pnlOverlay">
      <p><h1>Please wait.</h1>This may take<br />a minute...</p>
      <p class="hourglass">⧗</p>
    </div>

      
    <div id="pnlContainer">
      {{{ body }}}    
    </div>
  </body>
</html>


Style it this way. The position property is fixed, and we anchor it to the top left corner of the screen, with full height and width, a translucent black background and white text. Classic overlay. Of course, we have to set display to none, to hide it. The hourglass CSS class just makes sure the font for this is huge.

assets/css/styles.css
#pnlOverlay
{
    position: fixed;
    display: none;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    color: rgb(255, 255, 255);
    text-align: center;
}


#pnlContainer
{
    min-height: 100vh;
    max-width: 400px;
    margin: 0 auto 0 auto;
    text-align: center;
}

#pnlSelection
{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    text-align: justify;
}

#pnlError
{
    font-size: 0.8em;
    font-weight: bold;
    color: #FF0000;
}

.txtResult
{
    font-weight: bold;
    color: rgb(100, 100,100);
}

.hourglass
{
    font-size: 5em;
}


button
{
    width: 100%;
    height: 2em;
    margin-top: 2em;
    border-radius: 20px;
}


For the heck of it, throw in an animation!

assets/css/styles.css
#pnlOverlay
{
    position: fixed;
    display: none;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    color: rgb(255, 255, 255);
    text-align: center;
    animation: pulse 1s infinite;
}

#pnlContainer
{
    min-height: 100vh;
    max-width: 400px;
    margin: 0 auto 0 auto;
    text-align: center;
}

#pnlSelection
{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    text-align: justify;
}

#pnlError
{
    font-size: 0.8em;
    font-weight: bold;
    color: #FF0000;
}

.txtResult
{
    font-weight: bold;
    color: rgb(100, 100,100);
}

.hourglass
{
    font-size: 5em;
}

@keyframes pulse
{
    0%
    {
        color: rgb(255, 255, 255);
    }
    50%
    {
        color: rgb(100, 100, 100);
    }
}


button
{
    width: 100%;
    height: 2em;
    margin-top: 2em;
    border-radius: 20px;
}


Now, add this in the view. When the button is clicked, pnlOverlay should pop up just before the Try-catch block.

views/home.handlebars
let properties = [...selectedOptions]
.map(x => `"${x.value}"`)
.join(", ");

let prompt = `Return only a valid JSON object. The object should contain the following properties only: ${properties}. The value of each property should be the equivalent romanized version of the Chinese name "${name}" (without intonations) only. In the event of ambiguity, pick the first reasonable result.`;

document.getElementById("pnlOverlay").style.display = "block";
  
try {
  const response = await fetch("/transliterate", {


And once there's a resolution, it should disappear!

views/home.handlebars
try {
  const response = await fetch("/transliterate", {
    method: "POST",
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      prompt: prompt
    })
  });

  document.getElementById("pnlOverlay").style.display = "none";

  const data = await response.json();

  if (!data.success) {
    document.getElementById("pnlError").textContent = data.error;
    return;
  }

  const transliterations = JSON.parse(data.result);

  const txtResult = document.getElementsByClassName("txtResult");

  Array.from(txtResult).forEach((x) => {
    let propName = x.id.replace("result_", "");
    x.innerHTML = (transliterations[propName] ? transliterations[propName] : "");
  });
} catch (err) {
  document.getElementById("pnlError").textContent = "An unexpected error occurred.";
  console.error(err);
}


Here, let's try this.


There, it politely tells you to wait!


And then it shows you the results.


We're done here!

Just another fun NodeJS project. Combining my love for writing code, with exploring new human languages.

Talk Too U-lei-ter!
T___T

Saturday, 1 November 2025

The year I finally achieved that JLPT certification

Some say "better late than never". I got a huge dose of that this year as I obtained my Japanese Language Proficiency Test (JLPT) N5 Certificate.

Why was this overdue? Well, you see, because I actually began on this journey at the tender age of 15. I was a Polytechnic student at the time, and this was a supplementary module. At first, things went well. Having received education in Chinese, learning the basic sounds of Japanese was a breeze. Learning the Hiragana and Katakana writing systems wasn't much of a stretch as well; in fact it was significantly easier than reading and writing Chinese characters. Until we got to Kanji, which essentially was Chinese characters.

Ugh, more Chinese.

At which point I lost all interest.

Also, at this time, I had begun an obsession with writing code, and building stuff. Japanese was a pretty language, but it just didn't fit into my world the same way C++, SQL or even QBasic, did.

And the rest, as they say, is history. Even after graduation, not only did I neglect whatever little Japanese I had learned, the next few decades were a disastrous collection of bad career choices, even worse lifestyle choices, and sobering life lessons.

COVID-19 and Clubhouse

Fast-forward to 2021. COVID-19 had the world in its loathsome grip and I, like many others, sought human interaction online. That was when I discovered the Clubhouse app. Through it, I encountered numerous communities, not all of which spoke English, Mandarin, or even Cantonese.

A few of these were Japanese speakers. And some were even offering Japanese lessons. I dove right in, relearning all the basics I had forgotten. Many times, I would simply listen in, try to make sense of the conversation, and Google words that came up. Then I started engaging, hesitantly, in the conversations. I even participated in Mandarin-Japanese exchanges!

Little cultural exchanges.

It was slow going. I wrote an app to facilitate relearning Hiragana and Katakana. I practiced writing every day, religiously. But there was this feeling that I could do more.

That was when someone suggested that I take the JLPT. And from that day forth, I took things up a notch.

Training in earnest

My next step was to install Duolingo on my phone. For the next few years, I faithfully partook of the exercises daily. At the same time, I went onto YouTube to search for JLPT Listening exercises. I didn't really have a sense of how far I had progressed; I just knew I needed to keep going. I've never been brilliant; but what I am good at is being consistent.

One year later, I downloaded the Migii app, and paid the subscription fees for accessing sample JLPT exam questions. With Duolingo, the returns were diminishing. I needed to train a different set of linguistic muscles - the kind used for passing the exam. Duolingo had brought me to a certain point where I could read the Japanese exam questions without too much difficulty... now I had to practice answering them.

The next milestone was hit another year later when, while watching a Japanese TV show, with English subtitles, I noticed something odd. Almost constantly, the subtitles would read "It's OK". Even though "It's OK" was a perfectly reasonable thing to say in the context of the current point of the story, it was a pretty poor translation.

Phrase Literal Meaning English Translation
daijobu It's OK. "It's OK."
dou itashimashite You're welcome. "It's OK."
shinpai suna Don't worry. "It's OK."
anshin shite Relax. "It's OK."
ki ni shinai de Pay it no mind. "It's OK."


At this point, I found myself thinking - wow, these translators are so goddamn lazy! They just use "It's OK" for everything!

And my next thought was - hey, if I know this much, shouldn't I be taking the JLPT already?!

The JLPT Test Voucher

That was when I registered for the JLPT on the Japanese Cultural Society of Singapore website. and paid a hundred Singapore dollars for the privilege. A month later, the JLPT test voucher arrived in the mail. The train was in motion; there was no going back.

Meanwhile, I continued training religiously. With Listening practice, especially. Online chatter had it that the recordings would be played only once, so I trained myself similarly, by not rewinding and replaying.

The JLPT N5 Exam

It was July when the day arrived. I head for the Singapore Management Institute where the exam was held, and stood in line with what looked like mostly Burmese folks. Interesting.

The invigilator who took charge of the exam room I had been assigned to, seemed to be Japanese going by the way she spoke English.

Shading answers with a pencil.

The proceedings were charmingly old-school. We were given question and answer sheets. It was all multiple-choice, and the correct answer had to be shaded with a pencil for feeding into a scanning machine. Despite my numerous certificates, I hadn't done this since... 2015? This was because my last couple certifications were earned from doing the coursework and presentations, rather than standardized tests.

The toughest moment in the exam came from the Choukai, which was the Listening portion. Despite my best efforts, my concentration slipped at various points. It was with considerable relief that I handed in my question and answer sheets, and headed off.

In August, I logged on to the JLPT portal to check my results. I had passed, and my results were more than decent. I actually scored higher on Listening than other sections!

The real value of all this

Last September, I got my actual physical certification through the mail. It was a foregone conclusion by that time, but I still felt that little thrill of pride. Job well done, bro, I told my reflection. Not such a big deal in the larger picture, but we've got to celebrate our wins even if they're small. Especially if said win took thirty-three friggin' years to achieve.

My results.

The JLPT N5 Certification isn't going to change my life. As far as professional cred goes, it's barely a blip. Achieving the JLPT N5 Certification probably puts me on par with the average Japanese toddler where the language is concerned. As for the value of understanding multiple languages? That's not much of a flex. This is Southeast Asia; just about everyone and their dog is multilingual.

No; at my age, the act of learning is arguably more important than what's being learned. It helps stave off dementia.

The real value is knowing and affirming, that with sufficient motivation and putting in the time and effort, I can learn pretty much whatever I choose to learn. And that is powerful stuff. In an age where things are constantly and rapidly evolving, the ability to learn shit has become vital - not just in the tech industry, but for life itself.

In hindsight, I should have realized this. How did I learn ASP? PHP? Ruby? VueJS? D3? All by picking up a book, watching videos, visiting websites, and constant practice. Most of the time, it really is that simple. The methods vary, but at the end of the day, it's about the willingness to put in the hours.

The linguistic journey continues!

I do want to see if I can achieve the next rung, the JLPT N4 Certification. Again, I'm not really sure why. Just for the hell of it, I guess. It's not like I plan to visit Japan. It's not like I realistically have anything to prove to anyone.

On the other hand, Korean does seem pretty interesting.

Decisions, decisions...

Ganbarimashoo!
T___T

Friday, 8 August 2025

The Curious Case of the Oddly Fragile Software Engineer

Earlier in the week, I happened to come across this article on Substack. It was titled The Manager I hated and the lesson he taught me by one Stephane Moreau. I was immediately intrigued because I am a software developer and I've worked for people I hate.

Well, actually, hate is a strong word. It's hyperbolic. Do I like them as people? Not at all. Do I wish physical harm or financial ruin on them? Not really either, no. In all fairness, if they were on fire, I might hesitate only a full five seconds before rushing over to help them like a decent human being by stamping on them as hard as humanly possible - to put the fire out, you understand.

When someone's on
fire, stamp on them.

Most of all, I'm a proponent of the idea that you can learn things even from people you don't like. Sometimes especially from people you don't like. Like, how many of such people have I learned from, how not to be a jackass? Countless!

But I digress...

The intention today was to discuss Stephane Moreau's thoughts on the manager he hated. His larger point I have no issue with - what I found really interesting was his description of what caused him to hate that Manager.

From what I saw, it started with a code review in which the Manager had this to say.
Over-engineered. Too many moving parts. Refactor.


This seemed pretty straightforward to me. A statement, an explanation, and an instruction, all in three short sentences. Moreau, however, didn't think so. This is what he had to say...
That was it. No "nice work". No "good attempt". Just a hard stop.

I sat there, fuming. I thought, "Does this guy enjoy tearing people down?"


Getting shot down.

Gee, I dunno. This seemed a bit much. I thought the Manager's comments were clear enough. What had Moreau been expecting, an essay? I didn't understand the part about "tearing people down" either. In fact, I feel like if the Manager had prefaced it with "nice work" or "good attempt", it would have felt patronizing. Which is perhaps worse than being curt. I don't need to be treated like I'm special. I do need to be treated like a professional, and that cannot happen if the Manager is feeling the need to (metaphorically) pat me on the head and throw me a bone.

This is why I can't relate

There was another line which Moreau took exception to, and at times described as "brutal".
This is fragile. What happens under load? What's the rollback plan?


And this.
You're thinking like a coder, not an engineer. Build things that survive failure.


I have received feedback like this before from my then-CTO. I was told that I approached things like a coder, and he expected more. I had no problem with this feedback, and would not have described it as "brutal". 

What baffles me is that the only way the Manager could be seen as "tearing people down" was if Moreau had seen himself as being above that kind of criticism. And in contrast, I've never seen myself as anything but mediocre. Frankly, from reading Moreau's stuff, my perception of him is that he's a humble and chill kind of guy, so perhaps he was merely relating a story from when he was young and dumb.

Like a kid with crayons.

Know what's brutal? Having your work torn to shreds and being told you write code like a toddler who just got crayons. Outright questioning what you contribute to the company. That's what I got from the above-mentioned CTO. Honestly, if Moreau had received that kind of feedback, I wonder how he would have wilted. The entire article just made Moreau look fragile, like some kind of snowflake.

Perhaps the culture in the Southeast Asia is just a lot different from the UK. Perhaps the general problem is that we're just not such a warm, nurturing environment. Here in sunny Singapore, I have the memory of being conscripted into the Singapore Armed Forces at the tender age of 19, and being yelled at by platoon sergeants on my first day... and my first thought was: Bitch please. You're think you're scary? I have a Cantonese mom.

In summary

Moreau made a whole slew of valid points in his article. I don't actually disagree with any of it. What I do take issue with, is the examples he used. As far as I'm concerned, those weren't put-downs from his then-Manager. If he wants put-downs, I've got some really savage ones.


Nice work, TeochewThunder. Good attempt!
T___T

Saturday, 7 January 2023

A Software Developer's Vacation in Kuala Lumpur

Even with a newly-minted passport, leaving Singapore on a vacation was not one of my priorities in the shitty pandemic era that began in 2019 and reached its peak in the years to follow. That was soon to change in 2021 when I met people on the Clubhouse app. Specifically, Malaysians. I wouldn't go as far as to call them my people, but we do share similarities in cultures, accents and languages. And thus I ended up hanging out with them a lot. Virtually on Social Media, that is.

Once borders opened up, however, our friendships took on a new dimension. Instead of just reading their texts or hearing their voices (and occasionally seeing their faces on video call), some of them dropped by in Singapore and we met up. Instead of just hearing them groan at my bad puns, I could now see them cringe in person. They were pretty enthusiastic abut the idea as well. There was actually a WhatsApp group created back in June just for this!

That's dedication!

And therefore, at the tail end of 2022, it seemed appropriate to take that passport out for a spin. To Kuala Lumpur, Malaysia, where most of them operated. The last time I was in Kuala Lumpur, it was in 2016. I was at a very different place mentally, professionally and financially. This blogpost is as much exploring the differences, as it is chronicling my little vacation.

December 29th, 2022

Upon arrival at Kuala Lumpur International Airport, I got stopped by a guy who offered me a ride from the airport to my hotel in Kuala Lumpur. He showed me his ride-hailing app which displayed a distance of about 55 KM. This threw me for a loop - the size of Singapore, from West to East, is just above 50 KM. After years of parking my ass on this tiny island, I had forgotten how large the rest of the world is. This was a timely reminder.

Wow that's over the
length of Singapore!

I was wondering if I was about to be scammed. He quoted me a price of 190 MYR, which was about 60 SGD or so. Considering the ride from my west-lying residence all the way east to Singapore's airport had cost me over 40 SGD, I thought it sounded about right. Besides, it was just money. I was too tired to care.

Later on, one of my friends informed me that I had paid more than twice the actual rate, which is about 80 MYR or less. I had been scammed. What was noteworthy was my reaction to the revelation. Years ago, I would have been pretty upset at being scammed for more than 40 SGD. Now, I earn enough that this is a drop in the ocean. 40 bucks? Pffft.

Upon arriving in the hotel room and connecting to the WiFi, I was bombarded by emails and messages from the workplace, all asking me for responses even though they knew I was on leave. Back when I was a mere grunt in a team full of software developers, no one would have bothered me. Now, I manage an InfoComm department. Vacation or no vacation, people are going to disturb me for stuff. That's the price I have had to pay for my modest success.

Later in the evening, a local friend took me out for dinner. We each had a bowl of noodles before going for an interesting walk about town. I thought I would be able to eat more than that, but no, my 45 year old body refused to rise to the occasion. The fact that I had woken up so early this morning, in tandem with the dinner, had put me in a bit of a food coma and ensured that I would be turning in early.

December 30th, 2022

The day started with a buffet breakfast at the hotel which I didn't enjoy as much as I'd hoped I would. Maybe it was the fact that I just couldn't eat as much as I used to. And then I went off on an aimless jaunt. There wasn't really much of a plan. I was just going to wander around until evening and then meet up with my friends for dinner. I started with the area northeast of the hotel.

Boy, that turned out well. To be fair, I wasn't expecting much.

Food street and interesting
architecture.

I passed through Jalan Alor, which was a food street packed with vendors peddling all manner of Asian cuisines. It was an interesting visual, not really for the food itself. At the end of it, I ended up at a tall building, Plaza Low Yat, which turned out to be an IT Mall in the vein of Singapore's Sim Lim Square. But it was far more satisfying. Where my complaint about Sim Lim Square has always been how diversified (and consequently diluted) its offerings have been in recent years, Plaza Low Yat was almost entirely dedicated to computer and mobile products. There was something beautiful about the single-mindedness on display there.

Inside
Plaza Low Yat.

I decided to progress on to Plaza Sungei Wang because Google Maps had recommended a few tattoo artists at this location. This seemed like a good time to re-ink skin art that hadn't been touched for decades. I got sidetracked by a very interesting miniatures exhibition, aptly named "MinNature". I won't say too much about this one; go check out their website.

I took so many pictures but
this has got to be my favorite.

Finally, I made my way into the first respectable-looking tattoo shop I encountered, and got the attention of the dude at the counter. Now, the job I had in mind was filling in the outlined letters on my knuckles, in Liverpool red. Seemed like a quick five-minute job, but one of the things I really hate as a software developer is people who presume to know how long a job will take me despite never having done it before. So I asked about the job, and he quoted me a price and said he could take care of it right now. Again, because I hate it when people try to bargain me down for a programming job, I did no such thing. What followed was probably the most professional five-minute tattoo jobs I've ever had.

Five-minute job.

In the evening, I was picked up by one of my friends in KL, this really sweet young girl. She took me to Thean Hou Temple, one of the more picturesque destinations in Kulala Lumpur, so I could do the tourist thing and meet up with everyone else.

This has to be the biggest
temple I've ever laid eyes on.

Now I was seeing all of them in person, at the same time. The dinner subsequently was overwhelming. I was experiencing what it was to be in that group, live. Honestly it wasn't all that different from being with them on the Clubhouse app, except that this time, there was food to go with it!

A banquet with friends.

December 31st, 2022

The last day of the year started off brightly as one of my friends, a studly dude with a voice like a phone sex operator, picked me up from the lobby of the hotel so we could head to Klang for some of its famous Bak Kut Teh. Damn, the soup was more like gravy than anything, and it tasted so good but I was hesitant to drink the stuff - it would probably wreak havoc on my digestive system.

This was amazing.

Then three of the ladies present, took me on a little road trip to Pantai Redang in Sekinchan where I was introduced to the Wishing Tree.

Interesting concept.

The weather was gloriously hot. As I sat in a makeshift swing and smoked a cigarette, I dared to dream that this was what retirement would be like. One day, when I stopped writing software for a living, I would sit in a chair like this and bask under the sun.

Experiencing
retirement.

We also took other sightseeing trips to the Sekinchan Rice Paddy and the N16 Bus Cafe. The latter was especially cute, but there as regrettably no space to partake of the experience. Still, I'm very appreciative of the time these ladies invested in bringing me around on New Year's Eve.

The trip back to Kuala Lumpur took more than an hour. I was pretty much done for the day, but two other friends had other ideas. They took me out for dinner at a food truck place. We followed that up by heading to a rooftop bar where the countdown to 2023 was going to take place. All of us left well before 10 PM to beat the traffic. After the day I'd had, I certainly wasn't complaining. The day ended with me sitting by the roadside with a cup of tea, watching the Kuala Lumpur traffic.

January 1st, 2023

The morning of the first day of 2023 had me fighting metaphorical fires at the workplace that had sprung up during my absence. This was the day that the Singapore government raised the Goods and Services Tax. Being in the F&B sector, my company needed to reflect these changes quickly in the system.

Soon, another friend came to meet me, taking me out for brunch. This was in a large sprawling food court. We had a nice chat and I let him go around noon because he had a family to get back to. On my part, I had some more aimless wandering to do. My meandering took me to Lalaport and Berjaya Times Square, two of the largest malls in Kuala Lumpur. This felt too much like Singapore and I soon discovered the need to leave, pronto. Lalaport had one nice feature though...

Creatively-designed seats!

... resting seats shaped like its logo! Nice!

For the final dinner of my vacation, I met up with the first friend I'd had dinner with the first evening, and another friend working here from East Malaysia. The three of us ate a hearty meal and had dessert over cracking goofy jokes and conversations about nothing. This was followed by a long after-dinner stroll all around Kuala Lumpur which ended up at the hotel.

The aftermath.

For a final night, this was a good way to go.

January 2nd, 2023

Got up early, checked out, and had a cab ride (at a non-inflated price this time) to the airport. Kuala Lumpur International Airport's departure lounge was nowhere as opulent as Singapore's, but it was decent enough. Sometimes I think Singapore overdoes things.

Watching planes
take off while
smoking.

In particular, their Designated Smoking Zone was pretty cool!

Final thoughts

Kuala Lumpur reminded me strongly of Singapore 30 years ago. I saw things I hadn't seen for years, such as ashtrays in bars. In some cases, I saw cars parked on curbs, something I hadn't seen since childhood. And many of the old-fashioned malls I see here, are fast dying out in Singapore. The sense of nostalgia was powerful.


Everywhere I went.

All in all, I spent about five days here, and aside from the conversations I had with friends, no one else in Malaysia spoke to me in anything other than Malay and Cantonese. That's right - I used not a word of English or Mandarin getting around Kuala Lumpur. Malaysia is looking increasingly like a good place to retire.

Plus, there's good coffee without needing to look too hard.

Malaysia boleh,
T___T