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

JavaScript Interview Questions

Questions Answers Views Company eMail

Which built-in method returns the calling string value converted to lower case?

1171

Define unescape() function?

993

Explain the working of timers in javascript?

1058

Which built-in method reverses the order of the elements of an array?

936

Define escape() function?

912

What are the variable naming conventions in javascript?

992

How to print a web page using javascript?

969

Which built-in method removes the last element from an array and returns that element?

923

Which built-in method returns the length of the string?

976

How to create a cookie using javascript?

1096

Which type of variable among global and local, takes precedence over other if names are same?

980

Which built-in method adds one or more elements to the end of an array and returns the new length of the array?

1334

Which built-in method returns the calling string value converted to upper case?

960

Give an example of closure?

949

What is purpose of onerror event handler in javascript?

934

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Un-Answered Questions { JavaScript }

What is new function in javascript?

1034

What are the advantages of using external javascript?

939

What do I need to code javascript?

984

Have you used any browser for debugging? If yes, how is it done?

895

What is a hash javascript?

1037

How to define name function in javascript?

992

How do we get javascript onto a web page?

876

what are the differences between as2 and as3?

3455

What are the methods involved in javascript?

1036

How much does a javascript developer make?

928

Is javascript whitespace sensitive?

1013

To write messages to the screen without using "document.write()"?

860

What is the difference between an array and an object?

1009

What is the use of spread operator?

977

what is event bubbling and event capturing in javascript?

1003

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