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If you are walking down the lanes of Ameerpet—the Silicon Valley of Hyderabad—you will see thousands of students carrying laptops and printouts. The one question that echoes in every coaching center is: "Where can I get the best JavaScript notes?"

// Real Use Case (Data Hiding) function counter() { let count = 0; return { increment: () => ++count, decrement: () => --count, getCount: () => count }; } const myCounter = counter(); console.log(myCounter.increment()); // 1 console.log(myCounter.increment()); // 2 // 'count' is private. Cannot access it directly. javascript notes pdf ameerpet better

// Closure: Inner function remembering outer function's variables even after outer function is gone. function outer(outerVar) { return function inner(innerVar) { console.log( Outer: ${outerVar}, Inner: ${innerVar} ); } } If you are walking down the lanes of