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

JavaScript Interview Questions

Questions Answers Views Company eMail

Is it possible to use javascript to change the meta-tags of the page?

952

How to convert json string to object?

1083

What is object in javascript?

1185

what is the difference between let, var, and const?

1186

What is the difference between undefined and object?

1038

How to create the namespace in javascript?

1090

What is the scope variable in javascript?

1068

What are associative arrays in javascript?

1110

How to show progress bar while loading using ajax call?

1079

What is hoisted in javascript?

1035

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

1100

Is javascript case sensitive language?

1062

What are all the looping structures in javascript?

1136

How to read a cookie using javascript?

1215

What is an asynchronous programming? Why is it important in javascript?

1100

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Un-Answered Questions { JavaScript }

List some features of javascript.

1686

What do you mean by script?

920

How does typeof operator work?

1119

What is the use of anonymous function in javascript?

928

Difference json arrary vs json object ?

979

What is difference between local variable and global?

977

Is notepad ++ an ide?

944

What is the difference between arrow function and normal function?

1069

Text from your clipboard?

914

What is question mark in javascript?

949

Is javascript the future?

1005

What is encodeuri() in javascript?

1127

What is difference between deep and shallow object coping in javascript?

1090

What is string in javascript?

1139

Explain unescape() in javascript?

992

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