no-new-buffer.md

Enforce the use of Buffer.from() and Buffer.alloc() instead of the deprecated new Buffer()

💼 This rule is enabled in the ✅ recommended config.

🔧💡 This rule is automatically fixable by the --fix CLI option and manually fixable by editor suggestions.

Enforces the use of Buffer.from and Buffer.alloc() instead of new Buffer(), which has been deprecated since Node.js 4.

Fail

const buffer = new Buffer('7468697320697320612074c3a97374', 'hex');

const buffer = new Buffer([0x62, 0x75, 0x66, 0x66, 0x65, 0x72]);

const buffer = new Buffer(10);

Pass

const buffer = Buffer.from('7468697320697320612074c3a97374', 'hex');

const buffer = Buffer.from([0x62, 0x75, 0x66, 0x66, 0x65, 0x72])

const buffer = Buffer.alloc(10);