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

JavaScript Interview Questions

Questions Answers Views Company eMail

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

1044

Explain higher-order functions in javascript?

915

Explain javascript accessors ?

918

Explain arrow functions?

979

Is it possible to do 301 redirects in javascript ?

891

List some unit testing frameworks javascript

935

How to remove duplicates from javascript array?

1010

How to remove duplicate values from a javascript array?

1009

What are exports and imports?

975

What are different types of inheritence? Which inheritance is followed in javascript.

923

Explain few difference between null, undefined or undeclared javascript variable?

919

List different ways of empty an array in javascript?

861

How to add a new property in existing function javascript?

970

How to encode and decode a url in javascript?

1073

What does the instanceof operator do?

1022

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Un-Answered Questions { JavaScript }

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

1029

What is scope variable in javascript?

1063

How do you create array in javascript?

1018

What is primitive data type in javascript?

928

Do I need to install javascript?

963

What is escape() function?

945

How do you name a variable in javascript?

958

How to convert json object to string?

1046

Create an array in javascript with a list of 4 colors, assign that array to the variable, ‘colors’.

920

What is number in javascript?

869

How we can get the value of an element using javascript?

1004

How to find the selected radio button immediately using the 'this' variable?

948

how to get no of items from from weblist?

1899

how to read and write a file using JavaScript?

1188

How to get the primitive value of a string in Javascript?

1055

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