Example of alert pop-up prompt box in basic JavaScript tutorial

This article mainly introduces the alert pop-up prompt box example of the basic JavaScript tutorial. The focus of this article is to explain the basic syntax and basic usage of JavaScript, for more information about the basic JavaScript tutorial, see the alert pop-up prompt box. This article focuses on the basic syntax and basic usage of JavaScript. For more information, see

A prompt box is displayed for the alert command.

This section provides several simple examples for beginners to learn JavaScript. The following code is an example of a pop-up prompt box: