Pop-Up Boxes in JavaScript

Posted Date: 31 Oct 2008	Resource Type: Articles	Category: ASP.NET/Web Applications
Author: Pradeep Iyer	Member Level: Diamond
Rating:	Points: 5

There are three types of pop-up boxes in the JavaScript. They are:

1. alert()
2. confirm()
3. prompt()

alert()
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It is used to alert the user with some message. It contains a. "Ok" button on it.

Syntax: alert(mesg);
Example: alert("Hello");

confirm()
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It is used to confrim something from the user. It contains both the "Ok" button and the "Cancel" button on it.

Syntax: confrim(mesg);
Example: cofirm("Do you want to exit?");

prompt()
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It is used to prompt the user to enter some text. It contains a textbox, an "Ok" button and a "Cancel" button on it.

Syntax: prompt(mesg,default_value);
Exmple: prompt("Enter a number","defaultnumber");

Here the default_value is the text displayed on the texbox by default.
promt() returns the value or text entered by the user if the user clicks "Ok", otherwise it returns a null.

REGARDS
PRADEEP Y

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