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JavaScript Interview Questions
Questions Answers Views Company eMail

How to get value of an element by class in javascript ?

 486

What is console.log() and why it is used?

 589

What is 'use strict'?

 515

what are the difference unescape() and escape() functions?

 551

What is singleton class in javascript? Explain

 475

What is null in javascript?

 529

Who introduced javascript?

 490

What is console.log()?

 511

What is the difference between "var" and "let" keywords?

 513

What are the difference between undefined and not defined in javascript?

 514

How can a value be appended to an array?

 483

How will you explain closures in javascript? When are they used?

 540

What are screen objects?

 513

How can javascript codes be hidden from old browsers that don't support javascript?

 497

How can the os of the client machine be detected?

 492

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Un-Answered Questions { JavaScript }

Where should I put script tags?

494

What is the most widely used programming language?

456

what is event bubbling and event capturing in javascript?

504

How to prevent modification of an object in Javascript?

548

What is scope javascript?

551




What is the difference between rootscope and scope?

451

What does polyfill mean?

498

What are javascript closures?when would you use them?

532

Explain the for-in loop?

527

What would be the result of 2+5+”3″?

527

How is it possible to get the total number of arguments that are passed to a function?

536

Name some of the Javascript frameworks?

550

How to create scale in P info

1952

Explain unescape() in javascript?

508

How to calculate fibonacci numbers in javascript?

505

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