Introduction to Bundle Collapser

Bundle Collapser is a powerful tool for JavaScript developers designed to minimize the size of module bundles by collapsing file paths. This optimization can result in more efficient applications and faster load times. In this article, we introduce Bundle Collapser and walk through its various APIs, supported with code snippets to help you get started quickly and effectively.

APIs and Examples

collapse

The primary function of Bundle Collapser is the collapse API. This function takes a bundle and reduces the file paths within it.

const bundleCollapser = require('bundle-collapser/plugin');
const { collapse } = bundleCollapser;

// Example usage
const myBundle = {
    "input.js": {
        name: "./input.js",
        deps: {
            "./module1.js": "./mod1.js",
            "./module2.js": "./mod2.js"
        }
    }
};

const collapsedBundle = collapse(myBundle);
console.log(collapsedBundle);

expand

Another useful API is expand, which reverses the effects of collapse and restores the original file paths.

const bundleCollapser = require('bundle-collapser/plugin');
const { expand } = bundleCollapser;

// Example usage
const collapsedBundle = {
    "input.js": {
        name: "./input.js",
        deps: {
            "mod1.js": "./mod1.js",
            "mod2.js": "./mod2.js"
        }
    }
};

const expandedBundle = expand(collapsedBundle);
console.log(expandedBundle);

isCollapsed

The isCollapsed API checks whether a given bundle is collapsed or not.

const bundleCollapser = require('bundle-collapser/plugin');
const { isCollapsed } = bundleCollapser;

// Example usage
const isItCollapsed = isCollapsed(myBundle);
console.log(`Is the bundle collapsed? ${isItCollapsed}`);

Application Example

Here’s a small application that demonstrates the use of the described APIs.

const bundleCollapser = require('bundle-collapser/plugin');
const { collapse, expand, isCollapsed } = bundleCollapser;

const myAppBundle = {
    "app.js": {
        name: "./app.js",
        deps: {
            "./utils.js": "./utils.js",
            "./components/header.js": "./components/header.js"
        }
    }
};

console.log("Original Bundle:", myAppBundle);

const collapsedAppBundle = collapse(myAppBundle);
console.log("Collapsed Bundle:", collapsedAppBundle);

const expandedAppBundle = expand(collapsedAppBundle);
console.log("Expanded Bundle:", expandedAppBundle);

const collapsedCheck = isCollapsed(collapsedAppBundle);
console.log(`Is the application bundle collapsed? ${collapsedCheck}`);

With these API examples, you can see how Bundle Collapser can be seamlessly integrated into your JavaScript project optimization workflow.

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