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Question 339 of 521

Part 6: Async Internals, Memory, Microtasks & Web APIs (329 - 403)

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JavaScript Internals (521 Qs)•Part 6: Async Internals, Memory, Microtasks & Web APIs (329 - 403)

What is the purpose of double tilde operator

The double tilde operator(~~) is known as double NOT bitwise operator. This operator is a slightly quicker substitute for Math.floor().

Practical Code Example

javascript
// Double Tilde (~~) Operator: Fast bitwise shortcut for Math.trunc():
console.log(~~4.9);   // 4
console.log(~~-4.9);  // -4
console.log(~~"42");  // 42 (also coerces numeric strings)
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