JavaScript has eight fundamental data types, which can be categorized into primitive and non-primitive (reference) types.🎉🚀 🔹Primitive Data Types (Immutable) 1. Number → Represents numeric values (integers and floating-point numbers). let num = 42; let price = 99.99; --------------------------------------- 2. BigInt → Used for very large integers beyond Number.MAX_SAFE_INTEGER let bigNum = 9007199254740991n; --------------------------------------- 3. String → Represents text data let name = "John Doe"; --------------------------------------- 4. Boolean → Represents true or false let isLoggedIn = true; --------------------------------------- 5. Undefined → A variable that has been declared but not assigned a value. let x; console.log(x); // undefined --------------------------------------- 6. Null → Represents an intentional absence of value. let emptyValue = null; --------------------------------------- 7. Symbol → Represents a unique and immutable identifier (used for object properties). let sym = Symbol("unique"); --------------------------------------- 🔹Non-Primitive Data Type (Mutable, Reference Type) 8. Object → A collection of key-value pairs (arrays, functions, and other objects fall under this). let person = { name: "Alice", age: 25 }; let arr = [1, 2, 3]; let func = function () { console.log("Hello"); }; --------------------------------------- Special Cases Arrays ([]) → Special type of object for ordered lists. Functions (function) → Objects with executable code. Date, RegExp, Map, Set, WeakMap, WeakSet → Specialized objects. #JavaScript #LearnJavaScript #JavaScriptTutorial #JSDataTypes #JSBasics #WebDevelopment #CodingTips #FrontendDevelopment #react #FullStackDeveloper #coder #coding #react #ProgrammingForBeginners #CodeNewbie #100DaysOfCode #TechEducation #tips #SoftwareEngineering #CodingLife #javascript

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