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JavaScript & Node.js Cheat Sheet

Modern ES6+ array methods, regex patterns, async/await patterns, and DOM utilities.

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Popular JavaScript & Node.js Recipes1 commands available

Production-ready, battle-tested regular expression pattern to validate RFC 5322 email formats in JavaScript/TypeScript.

javascript
const isValidEmail = (email) => /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email);