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Showing content from https://github.com/websockets/utf-8-validate below:

websockets/utf-8-validate: Check if a buffer contains valid UTF-8

Check if a buffer contains valid UTF-8 encoded text.

npm install utf-8-validate --save-optional

The --save-optional flag tells npm to save the package in your package.json under the optionalDependencies key.

The module exports a single function that takes one argument. To maximize performance, the argument is not validated. It is the caller's responsibility to ensure that it is correct.

Checks whether a buffer contains valid UTF-8.

true if the buffer contains only correct UTF-8, else false.

'use strict';

const isValidUTF8 = require('utf-8-validate');

const buf = Buffer.from([0xf0, 0x90, 0x80, 0x80]);

console.log(isValidUTF8(buf));
// => true

MIT


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