Recent questions tagged javascript-interview-questions-answers

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Q: What's the output? +true; !'Lydia'; A: 1 and false B: false and NaN C: false and false

asked Feb 24 in JavaScript by DavidAnderson

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Q: What's the output? for (var i = 0; i < 3; i++) { setTimeout(() => console.log(i), 1); } for (let i = 0; i < 3; i++)

asked Feb 24 in JavaScript by DavidAnderson

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Q: What's the output? function sayHi() { console.log(name); console.log(age); var name = 'Lydia'; let age = 21; }

asked Feb 24 in JavaScript by DavidAnderson

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Q: What is Web Workers API in javascript?

asked Feb 20 in JavaScript by DavidAnderson

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Q: How to Clone a Map or Set in JavaScript?

asked Feb 20 in JavaScript by DavidAnderson

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Q: Explain about the JavaScript weakMap set() Method?

asked Feb 20 in JavaScript by DavidAnderson

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Q: What is use of reduce() method of Array in javascript?

asked Feb 20 in JavaScript by DavidAnderson

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Q: Output of the following javascript program

asked Feb 20 in JAVA by DavidAnderson

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Q: Z-Index will not work with static postioning?

asked Feb 20 in JavaScript by DavidAnderson

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Q: What is The "use strict" Directive in javascript?

asked Feb 20 in JavaScript by DavidAnderson

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Q: Explain about the Map in Javascript?

asked Feb 20 in JavaScript by DavidAnderson

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Q: Maps keep the order of key insertion true/false

asked Feb 20 in JavaScript by DavidAnderson

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Q: Play method on video is an asyn operations?

asked Feb 20 in JavaScript by DavidAnderson

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Q: What is Await Function in javscript?

asked Feb 20 in JavaScript by DavidAnderson

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Q: What is Async Function in Javascript?

asked Feb 20 in JavaScript by DavidAnderson

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Q: What is JavaScript Hoisting?

asked Feb 20 in JavaScript by DavidAnderson

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Q: what is the memory size of a weakmap object?

asked Feb 20 in JavaScript by DavidAnderson

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Q: How to use await outside of async function prior to ES2022?

asked Oct 28, 2023 in JavaScript by DavidAnderson

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Q: What is module pattern in Javascript?

asked Oct 28, 2023 in JavaScript by DavidAnderson

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Q: What are compose and pipe functions?

asked Oct 26, 2023 in JavaScript by DavidAnderson

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