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

JavaScript Interview Questions

Questions Answers Views Company eMail

How to delete a cookie using javascript?

973

Which built-in method sorts the elements of an array?

987

What are the javascript data types?

958

What are the different ways to create an array in javascript?

934

How are javascript and ecma script related?

900

What is the naming conventions for the variables in javascript?

963

How to check if a variable is an integer in javascript ?

1010

Are namespaces are there in javascript?

959

What do “1”+2+4 evaluate to?

888

What is an empty html tag?

853

How do I retrieve a cookie with a given name using a regular expression?

878

How to create an array in javascript?

1010

What is the difference between window.onload and ondocumentready?

867

How can I request data from the server without reloading the page in the browser?

912

What is the function of deferred scripts?

987

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Un-Answered Questions { JavaScript }

What is the use of a weakmap object in javascript?

907

What is an ECMAScript?

1021

Should I learn java first or javascript?

919

What Is The Disadvantages Using InnerHTML In JavaScript?

960

What is scope javascript?

941

What is lazy instantiation in java?

858

How to set the focus in an element using javascript?

966

What is array in javascript?

923

Who introduced javascript?

888

What is callback in javascript?

943

Difference between Pure functions Vs. Impure functions in javascript?

948

Why is javascript hoisting?

884

Is JavaScript a case-sensitive language?

925

What do mean by NULL in Javascript?

1050

What is viewstate in javascript?

989

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