There are three types of JavaScript popup boxes: the alert box, confirm box, and prompt box. ... Alert in JavaScript . To display the alert message, click on the show alert message button. Once you ...

Alert box type: alert, confirm or prompt: alert: title: Main heading: subtitle: Displayed below main heading: text: Message to display in body section. string or #elementId. You can provide id of an ...

A modal message box, form or dialog box must be processed before you can continue working with the rest of the application. Examples in Javascript are the alert, confirm, and prompt statements. These ...