CommonJS

Fleeting

• Référence externe : https://jameshfisher.com/2020/09/27/what-does-the-require-function-do-in-nodejs/

“CommonJS” module system, which is mainly used in Node.js, and is identified by calls to a require function

— https://jameshfisher.com/2020/09/27/what-does-the-require-function-do-in-nodejs/

CommonJS module exports things by adding properties to an exports object

— https://jameshfisher.com/2020/09/27/what-does-the-require-function-do-in-nodejs/

const express = require(’express’), but what does this do? The full search algorithm is a bit horrifying. But in a standard setup, this loads the JavaScript file at ./node_modules/express/index.js. You can equivalently write const express = require(’./node_modules/express/index.js’).

— https://jameshfisher.com/2020/09/27/what-does-the-require-function-do-in-nodejs/

also use require.resolve to debug it:

> require.resolve(’express’) ‘/Users/jim/dev/tmp/node_require/node_modules/express/index.js’

— https://jameshfisher.com/2020/09/27/what-does-the-require-function-do-in-nodejs/

require to load new modules

.cjs extension

Notes pointant ici

• danez/pirates
• deno
• determining module system
• jupyter javascript/typescript
• modules loaders
• playwright/test + ts-node = wrong stack traces (blog)
• trying rust in webassembly
• What are CJS, AMD, UMD, and ESM in Javascript?

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