JavaScript Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

JavaScript Interview Questions

Questions Answers Views Company eMail

What is slug in javascript?

971

What is dataview in javascript?

909

How do I open javascript console?

927

How do you round a value in javascript?

885

What is foreach loop in javascript?

952

What is number in javascript?

822

What is the difference between write and writeln in javascript?

850

What is difference == and === in javascript?

938

Which is better for or foreach in javascript?

917

What is asynchronous javascript?

891

Can we create session in javascript?

873

What is lazy loading in javascript?

953

Do unused imports affect performance javascript?

1483

What is eager initialization in java?

875

What is lazy instantiation in java?

857

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Un-Answered Questions { JavaScript }

What is Date object in JavaScript?

1031

What is the use of ‘debugger’ keyword in javascript code?

843

Example of using regular expressions for syntax checking in javascript?

890

Write JavaScript code to use file system in binary format?

2496

What is difference between undefined variable and undeclared variable?

892

What is event in web programming?

877

What is stack queue?

873

How to change video files randomly after completing its execution in Javascript?

2284

What are disadvantages of using javascript?

1042

What are the Non-primitive data types in JavaScript?

948

Should I disable javascript?

895

What is the difference between .call() and .apply()?

982

Is javascript case sensitive?

1022

In a pop-up browser window, how do you refer to the main browser window that opened it?

854

What is the use of 'bind' method in JavaScript?

996

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