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

JavaScript Interview Questions

Questions Answers Views Company eMail

What is namespacing in javascript and how is it used?

950

What is the method for reading and writing a file in javascript?

959

What is called variable typing in javascript?

974

Does javascript support automatic type conversion?

1102

What are the two basic groups of dataypes in javascript?

1051

Explain window.onload and ondocumentready?

909

How to find operating system in the client machine using javascript?

961

Explain the role of deferred scripts in javascript?

944

How can a page be forced to load another page in javascript?

1094

Is it possible to break javascript code into several lines?

1541

How generic objects can be created?

925

Write about the errors shown in javascript?

889

Define unescape() and escape() functions?

955

Mention what is the disadvantage of using innerhtml in javascript?

999

Explain the for-in loop?

910

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Un-Answered Questions { JavaScript }

How do you change the style/class on any element?

999

What is the use of let & const in javascript?

943

What is the use of a map object in javascript?

955

why can't we call a static method from a non-static method

2242

What is jscript used for?

925

Can I declare a variable as CONSTANT in JavaScript?

977

List few advantages of using javascript?

851

What close() does in javascript?

945

What is the statement to enable strict mode in javascript quiz?

1056

What is unescape() function?

1116

Is javascript backend or frontend?

870

What will be the output of the following statements?

946

How to setting a cookie with the contents of a textbox?

997

What are the different functional component in javascript?

906

How many days it will take to learn javascript?

895

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