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nunjucks templating language pre-processor for your bundle





( short for webpack-templating-language-loader )
Nunjucks templating language pre-processor for your bundle.

What it allows you to do

This loader runs nunjucks over your files before it gets written to the bundle. Nunjucks is a templating language very similar to Jinja2.

<div class="columns is-mobile is-multiline">
    {% for skill in skills %}
        {% for k, v in skill %}
            <div class="column is-6-mobile is-2-desktop is-4-tablet">
                <div class="card">
                    <div class="card-content">
                        <section class='mb-4'>
                            <h2>{{ k }}</h2>
                            <progress class="progress is-medium" value="{{ v }}" max="100">{{ v }}%</progress>
        {% endfor %}
    {% endfor %}

Directory structure requirements

This loader requires you to have a ./data folder within the root directory of your application. The reason why is explained further down in this README, but in short, it is for making data accessible to your templating context.

Data Context

Adding data to the template context

To be able to access static data in your templates, simply put .json files in the ./data folder.
Here is an example (./data/skills.json):

    {"python": 95 },
    {"javascript": 79 },
    {"C": 80},
    {"C++": 79},
    {"PHP": 89},
    {"Typescript": 79},
    {"Bash": 79},
    {"SQL": 60},
    {"CSS": 81},
    {"HTML": 90},
    {"SCSS": 82},
    {"Java": 60},
    {"React.js": 70},
    {"Vue.js": 50},
    {"Flask": 90},
    {"MongoDB": 69},
    {"Flutter": 40},
    {"React Native": 39},
    {"OpenGL": 60},
    {"Linux": 87},
    {"Kubernetes": 20},
    {"Elastic Search": 25},
    {"Firebase": 59},
    {"Wordpress": 86}

The loader will automatically make this data available in a global skills variable. It automatically names the variable exactly the same as the filename but without the .json extension.

Piping your data

You can also pipe your data through a function. I call this function modifier. Simply put a file in your ./data folder.
( ./data/modifier.js )
Here is an example:

const sortItems = (a, b) => {
    const akeys = Object.keys(a);
    const bkeys = Object.keys(b);
    const av = akeys ? a[akeys[0]] : 0;
    const bv = bkeys ? b[bkeys[0]] : 0;

    return bv - av;

module.exports = (data) => Object.assign(
        "skills": data.skills.sort(sortItems),

This example will sort the skills by their value.


To install this loader, first run:

npm install -D webpack-tl-loader

And then edit your webpack config and add the following:

const config: webpack.Configuration = {


    module: {
        rules: [


                test: /\.html$/,
                use: ["html-loader", "webpack-tl-loader"],

And now you are ready to start templating!