Introduction The javascript alert is a dialogue box that pops up and takes the faces away from current window and focus to read message Why is it helpful * if we closes a page without saving we often saw a message *You can add message to user eg "NOT FOR MINORS" *An error message *Conformation message Code: <html> <body> <form> <input type="button" onclick="alert('Your message eg:-FOR MINORS')" value="Click here"> </form> </body> </html>
