Introduction to import Syntax
When you work with Node.js, you will often need to organize your code into multiple files. To use code from one file in another, you need a way to import and export functionality. Node.js supports two main module systems: CommonJS (using require) and ES modules (using import). The ES module system, based on the JavaScript standard, is becoming increasingly popular and is recommended for modern Node.js projects.
The ES module syntax uses the import statement to bring in code from other files. You should use ES modules when you want compatibility with modern JavaScript tools, or when you are writing code that may run in both Node.js and browsers. ES modules are especially useful if you are using features like import/export, top-level await, or want to avoid some of the quirks of CommonJS.
index.js
The CommonJS module system uses require() to load modules and module.exports or exports to export them. In contrast, ES modules use import and export statements. ES modules are statically analyzed, which enables better optimization and tooling, while CommonJS modules are loaded dynamically at runtime. Also, ES modules require the .mjs file extension or "type": "module" in your package.json to work in Node.js.
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Can you show me an example of how to use ES modules in Node.js?
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When you work with Node.js, you will often need to organize your code into multiple files. To use code from one file in another, you need a way to import and export functionality. Node.js supports two main module systems: CommonJS (using require) and ES modules (using import). The ES module system, based on the JavaScript standard, is becoming increasingly popular and is recommended for modern Node.js projects.
The ES module syntax uses the import statement to bring in code from other files. You should use ES modules when you want compatibility with modern JavaScript tools, or when you are writing code that may run in both Node.js and browsers. ES modules are especially useful if you are using features like import/export, top-level await, or want to avoid some of the quirks of CommonJS.
index.js
The CommonJS module system uses require() to load modules and module.exports or exports to export them. In contrast, ES modules use import and export statements. ES modules are statically analyzed, which enables better optimization and tooling, while CommonJS modules are loaded dynamically at runtime. Also, ES modules require the .mjs file extension or "type": "module" in your package.json to work in Node.js.
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