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Editor to share with you which is the function of the javascript warning box, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

In javascript, the function that can implement the warning box is alert (), which is a method of the Window object that pops up a warning box with a specified message and a "OK" button; the syntax is "window.alert (message)" and the prefix window can be omitted.

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

When you need to make sure that the user receives a message, you can use the warning box, and the user must click the OK button on the warning box to continue.

In javascript, it is the alert () function that can implement the warning box.

Alert () is a method of the Window object that displays a warning box with a specified message and an OK button.

Specific grammatical format:

Window.alert (message)

The function argument is the content displayed in the pop-up box; the prefix window can be omitted.

Example:

JavaScript pop-up box

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