JavaScript Interview Questions
Questions Answers Views Company eMail

What is the real name of JavaScript?

549

How to define a named function in JavScript?

532

What is the difference between undefined value and null value?

505

Are Typescript and Javascript the same?

514

How can you create an Array in JavaScript?

564

What is the difference between the operators '==' and '==='?

511

What is JavaScript?

659

What do mean by NULL in Javascript?

507

How to read elements of an array in JavaScript?

512

What are the new ways to define a variable in Javascript?

564

Are Javascript and JScript the same?

535

What is the function of delete operator?

547

Name some of the ways in which Type Conversion is possible?

524

What is the difference between the keywords var and let?

541

Explain the typeof operator?

533


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Un-Answered Questions { JavaScript }

How to call a function inside a function in javascript?

478


how to validate the date(dd/mm/yyyy)using regular expression in javascript? It should also satisfy the leap year feb 29 problem. Please help me.

5584


how to read and write a file using JavaScript?

544


What does the delete operator do?

487


What is whitespace in javascript?

452






How do you write an if statement in javascript?

464


What is called variable?

448


What is DOM? What is the use of document object?

549


What are the requirements of web application using javascript?

510


Which built-in method returns the characters in a string beginning at the specified location?

595


What is Associative Array? How do we use it?

557


What is strict mode in javascript?

534


how do you declare variables in javascript?

474


What is difference between local variable and global?

463


What are the data types in js?

473