Can you explain the difference between CommonJS and ES6?
Sure! CommonJS is a module system used primarily in Node.js, while ES6 (or ECMAScript 2015) introduced a new module syntax for JavaScript that is now widely used in both browsers and Node.js.
What are the main features of ES6 modules?
ES6 modules support static imports and exports, allowing for better optimization and tree-shaking. They also use the import
and export
keywords.
How do I convert a CommonJS module to ES6?
To convert, replace require()
statements with import
and module.exports
with export
. For example, const myModule = require('./myModule');
becomes import myModule from './myModule';
.
Are there any performance differences between the two?
Yes, ES6 modules can be more performant due to their static structure, which allows for better optimization by bundlers and browsers.
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