💛 JavaScript Basics: The Brain of the Web
Ab shuru hota hai asli programming logic! JavaScript webpage ka dimaag (brain) hai. Ye buttons par click hone par decision leti hai, calculations karti hai aur website ko alive karti hai.
HTML ne car ki metal body banayi. CSS ne paint aur luxury leather seats lagayein. Lekin car chalegi kaise?
Jab accelerator dabe toh engine rev ho, brake dabe toh ABS activate ho, aur wiper chalane par rain sensor detect kare — ye saara dynamic control JavaScript karta hai!
Is Module Ke All Topics
01. Introduction to JavaScript & Developer Console
JavaScript vs Java, V8 engine, script tag (defer/async) aur DevTools console inspection.
02. Variables, let, const & Block Scope
let vs const vs legacy var, temporal dead zone (TDZ) aur block vs function scoping.
03. Data Types & Type Conversion
7 Primitives (string, number, boolean, null, undefined, bigint, symbol) vs Reference types.
04. Operators & Strict Equality (===)
Arithmetic, comparison, strict equality === vs ==, nullish coalescing ?? aur ternary operator.
05. Strings, Template Literals & Math Methods
Template literals with backticks `${...}`, string slicing, Math.random() aur precision.
06. Conditional Statements (if, else, switch)
Traffic light decision engine, if-else chains, switch-case statements aur guard clauses.
07. Loops & Iteration (for, while, for...of)
for, while, do-while loops, modern for...of iterables aur loop break/continue control.
08. Arrays & Modern Array Methods (map, filter, reduce)
Arrays, mutating methods (push/pop/splice) vs functional methods (map, filter, reduce, find).
09. Objects, Destructuring & Spread Operator
Key-value dictionaries, nested structures, object destructuring, spread ... aur Object methods.
10. Functions, Arrow Functions & Scope
Function declarations, modern arrow functions ()=>, default params, rest params aur callbacks.
11. Error Handling (try...catch & throw)
Car airbag system: try, catch, finally, custom throw errors aur common JS error types.