alert() (Method)

Present the alert dialog box to the user.

Availability:

JavaScript - 1.0
JScript - 1.0
Internet Explorer - 3.02
Netscape - 2.0
Opera - 3.0
Property/method value type:undefined
JavaScript syntax:-alert(aString)
-myWindow.alert(aString)
Argument list:aStringSome text to display in the alert box

Refer to:

Window.alert()