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

JavaScript Interview Questions

Questions Answers Views Company eMail

How typeof operator works?

1047

How Does Function Hoisting Work in JavaScript?

940

Can javascript code be broken in different lines?

1048

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

999

What are the basic groups of dataypes in JavaScript?

976

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

960

How to detect browser name using JavaScript?

1037

What are the decodeURI() and encodeURI()?

1053

Are Attributes and Property the same?

1045

Can you access Cookie using javascript?

996

Difference between window.onload and onDocumentReady?

969

What is a function callback?

988

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

1003

What is variable typing?

1035

What is the scope of variables in JavaScript?

1048

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Un-Answered Questions { JavaScript }

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

955

How to redirect a page to another page in javascript?

996

How to hide javascript code from old browsers that dont run it?

1030

What are .js files?

917

What is jscript used for?

930

What is servlet in javascript?

950

Is javascript a dynamic language?

926

Explain arrow functions?

979

Are javascript variables case sensitive?

906

What is missing in my code? function numberTally(numList) { var evenTotal = 0; var oddTotal = 0; for (var i = 0; i <= numList.length; i++) { if i % 2 { // i is odd oddTotal += numList[i]; // or oddTotal = oddTotal + numList[i]; } else { // i is even evenTotal + numList[i]; } } alert(oddTotal); return evenTotal; }

3344

How to write normal text code using JavaScript dynamically?

986

How can the os of the client machine be detected?

906

How to add html elements dynamically with JavaScript?

974

How can I prevent others from reading/stealing my scripts or images?

902

Is there automatic type conversion in JavaScript?

966

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