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JavaScript Interview Questions
Questions Answers Views Company eMail

How typeof operator works?

 567

How Does Function Hoisting Work in JavaScript?

 513

Can javascript code be broken in different lines?

 522

What is the difference between an Anonymous Function and a named function?

 517

What are the basic groups of dataypes in JavaScript?

 496

How do you add an element at the beginning of an array?

 544

How to detect browser name using JavaScript?

 528

What are the decodeURI() and encodeURI()?

 586

Are Attributes and Property the same?

 565

Can you access Cookie using javascript?

 549

Difference between window.onload and onDocumentReady?

 534

What is a function callback?

 540

How do you add an element at the end of an array?

 541

What is variable typing?

 554

What is the scope of variables in JavaScript?

 558

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Un-Answered Questions { JavaScript }

What are the different ways to create an array in javascript?

506

Who is the world famous hacker?

433

How to define a named function in JavScript?

536

How to achieve inheritance in javascript?

522

What is the importance of javascript?

484




Explain window.onload and ondocumentready?

501

What are trailing whitespace?

474

What are undeclared and undefined variables?

535

Which keyword is used to print the text in the screen?

620

Does spread operator deep copy?

534

Which built-in method combines the text of two strings and returns a new string?

669

What is double exclamation point?

516

How do I open javascript console?

472

What are self invoking functions?

495

Which built-in method returns the string representation of the number’s value?

644

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