Lesson 34: Mastering JavaScript Symbols with challenges!
Apr 24, 2025 · 5 min read · 🧩 What is a Symbol? A Symbol in JavaScript is a primitive data type introduced in ES6. It represents a unique, immutable identifier. const sym1 = Symbol(); const sym2 = Symbol("id"); console.log(sym1 === sym2); // false 🛠️ Why use Symbols? Symbol...
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