List of JavaScript Interview Questions. To get the
answers of these JavaScript Interview Questions.click here.
- How to get value from a textbox?
- How to get value from dropdown (select) control?
- How to get value from RadioButtonList control?
- How to get CheckBox status whether it is checked or not?
- How to toggle display an HTML element?
- What Boolean operators are not supported by JavaScript?
- What does is Nan function do?
- Who Developed JavaScript?
- Which method is used to clear an Array in javascript?
- For generating random numbers we have to used the following function?
- JavaScript is interpreted by _________
- Which of the following is not considered a JavaScript keyword?
- What does the <noscript> tag do?
- What should appear at the very end of your JavaScript?
The <script LANGUAGE="JavaScript">tag
- String Operations:
What will be the Output of the Following Code
var ContentURL="http://MySite1/online-tests/1111-First-questions";
ContentURL= ContentURL.substring(ContentURL.lastIndexOf("/")+1,ContentURL.length);
var LastIndex;
if(ContentURL.indexOf('-')>-1)
LastIndex=ContentURL.indexOf('-');
else
LastIndex=ContentURL.length;
ContentURL= ContentURL.substring(ContentURL.lastIndexOf("/")+1,LastIndex);
- Name the DataTypes of JavaScript?
- Which method is used to convert a string to uppercase letters?
- What will be the Output of the following using JavaScript
document.Write(Math.Round(6.7));
- Which method is used to Clear an array using JavaSctipt?
- Object can be assigned property by...
- I have regular expression for date: ^[0-1]{1,1}\d{1,1}/[0-3]{1,1}\d{1,1}/\d{4}$.
what will be the correct output according to the above regular expression.
suppose i want to print 20th of Oct , 2009
- What is the result of below given line of code in Java Script?
5+4+'7'
- What is undefined value means in JavaScript?
- What is === operator in JavaScript and how it is different from == operator?
- Can Javascript code be broken in different lines?
- How to get the Scroll height and Width in JavaScript !!
- What is undefined variable?
- Is it possible make a call to server side event of any button using javascript?
- What is other equivalent option of document.getElementById() when you are working with Ajax?
- How can you set position of the page (Top and Left) to 0 using Javascript in one line code?
- Write a way by which you can do something on the close of the window ?
- How to create an Object in JavaScript ?
- Basic methods for opening a PopUp window using Javascript?
- What is JSON?
- Which object you would use for displaying the running text in the Statusbar?
- How can you detect the Client Operating System using Javascript?
- What is the data type of variables in JavaScript?
- What is negative infinity?
- if 2 methods have same name and same number of parameters, which one will
be executed first?
- Difference between undefined and undeclared variables.
- Difference Json Arrary Vs Json Object ?
To get the
answers of these JavaScript Interview Questions.click here.
