ErrorOracle
javascript

ReferenceError: require is not defined in ES module scope

Error message

ReferenceError: require is not defined in ES module scope

What broke

'require' is a CommonJS feature used to import modules, but ES modules use 'import' instead. This error occurs when trying to use 'require' in a file that is treated as an ES module.

Why it broke

The root cause is that the JavaScript file is being executed in an ES module context, which does not support the CommonJS 'require' function. This typically happens when the file has a .mjs extension or when 'type': 'module' is specified in package.json.

How to fix

To fix this error, replace 'require' with 'import' statements to use ES module syntax. Ensure that your module exports are also compatible with ES module syntax.

Code fix

import myModule from './myModule.js';

Explained by ErrorOracle

Prevention tip

Ensure that your module exports are also compatible with ES module syntax.

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