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

JavaScript Interview Questions

Questions Answers Views Company eMail

TypeError: document.getelementbyid(...) is null?

938

What are the valid scopes of a variable in JavaScript?

1007

Is JavaScript a case-sensitive language?

960

What is the use of Void(0)?

1057

What is closure?

1086

how to read and write a file using JavaScript?

1169

In Javascript are calculations with fractional numbers guaranteed to be precise?

1060

Which built-in method calls a function for each element in the array?

1039

What are JavaScript Cookies?

912

What Does JavaScript Void(0) Mean?

932

How to set the cursor to wait in JavaScript?

1068

Which built-in method returns the character at the specified index?

1239

What will happen if an infinite while loop is run in Javascript?

995

How can you convert the string of any base to integer in JavaScript?

1079

How to handle exceptions in JavaScript?

976

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Un-Answered Questions { JavaScript }

What is an asynchronous programming? Why is it important in javascript?

1051

What do you mean by enumeration?

960

What is the way to get the status of a CheckBox?

1065

How do I turn on javascript?

864

What is output of “20” + 20 + 20 and “20” + ( 20 + 20)? In javascript?

1011

What coding language should I learn first?

889

How to import all exports of a file as an object.

963

How do I open javascript?

952

What is difference between java and javascript?

1000

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

997

Does javascript support automatic type conversion, if yes give example.

1050

A milk carton can hold 3.78 litres of milk. Each morning, a dairy farm ships cartons of milk to a local grocery store. The cost of producing one litre of milk is $0.38, and the profit of each carton of milk is $0.27. Write a java program that prompts the user to enter the total amount of milk produced in the morning. Then display the number of milk cartons needed to hold milk, the cost of producing milk, and the profit for producing milk.

2007

How to set a html document's background color?

951

What boolean operators can be used in JavaScript?

1005

How to create arrays in javascript?

957

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