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

JavaScript Interview Questions

Questions Answers Views Company eMail

What are self Executing Functions?

1177

Is Javascript a Functional Programming Language?

1136

Difference between the substr() and substring() in JavaScript?

1062

Which keyword is used to print the text in the screen?

1049

What is Browser Object Model?

971

Basic methods for opening a popup window using javascript?

982

what data type javascript supports?

994

How will you create new object in javascript?

1061

How to create a confirmation box?

936

How to toggle display an html element?

1068

What’s a way to append a value to an array?

1033

How do you check if a variable is an object

1206

When would you use var in your declaration and when you wouldn’t?

925

What is variable typing in javascript?

1064

What’s relationship between javascript and ecmascript?

1075

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Un-Answered Questions { JavaScript }

Why are callbacks used?

883

What does e mean in javascript?

1006

In Java coding we will write a public static void main()? Why won't we write as a static public void main()

2603

How Does Function Hoisting Work in JavaScript?

940

What is the real name of JavaScript?

1091

What's math constants and functions using javascript?

1073

How to create a function in javascript?

984

How can the os of the client machine be detected?

906

What are exports & imports?

966

What is a named function in JavaScript? How to define a named function?

982

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

969

Is javascript whitespace sensitive?

1013

What is the use of type of operator?

945

What is encodeuri() function?

1055

What is a boolean search?

871

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