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?

994

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?

915

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?

925

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

976

How to create a cookie using javascript?

1100

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

981

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

1335

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 }

How to get value of an element by class in javascript ?

966

What applications use javascript?

929

What is console.log()?

949

What are the datatypes in javascript?

910

What are the ways to emit client-side javascript from server-side code in asp. Net?

1003

What is innertext javascript?

968

What is client side in javascript?

874

What is an Event Bubbling in Javascript?

1029

Why do we use javascript?

920

How to write a script for "select" lists using javascript

1095

Mention what is the disadvantage of using innerhtml in javascript?

1012

How are event handlers utilized in javascript?

1069

How to replace all occurrences of a string in JavaScript?

1156

How to detect the OS on the client machine in JavaScript?

1110

Where is javascript used most?

938

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