9 Essential JavaScript Module Import Techniques for Web Applications 🚀

Xiuer Old
3 min read1 day ago

In the world of large-scale web application development, mastering JavaScript module imports is not just a skill — it’s a necessity. The right import techniques can significantly enhance your code quality, improve maintainability, and boost application performance. Let’s dive into nine essential import techniques that every developer should know. 💻

1. Named Imports vs. Default Imports 🏷️

Named Imports

Use named imports when you want to selectively import specific content from a module:

// math.js
export const add = (a, b) => a + b;
export const subtract = (a, b) => a - b;

// main.js
import { add, subtract } from './math';

Default Imports

Default imports are ideal when a module has one main export:

// user.js
export default class User {
// ...
}

// main.js
import MyUser from './user'; // You can use any name

2. Namespace Imports 📦

Import all exported content from a module as a single object:

// utils.js
export const format = () => {};
export const validate = () => {};
export default class Helper {};

// main.js
import * as Utils…

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Xiuer Old

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