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Lukas Gaucas
Lukas Gaucas

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CJS & ESM modules cross-compatibility

Two ways to be cross-compatible between Node's modules:

Scenario A.js : you're in ESM module & you want to require CJS :

// A.js
import { createRequire } from 'module'
const requireInESM = createRequire(import.meta.url)
requireInESM(path) // require CJS in this current module of ESM
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Scenario B.js : you're in CJS module & you want to import ESM:

// B.js
import (path); // use dynamic import to require ESM within current CJS module
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Found a typo, or want to improve something, leave a comment in the comment sections below . Thanks !

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