Are there any onchange events in html?

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There is an onchange event in html, which can be set by adding an onchange event attribute to the tag, the syntax ""; this attribute applies to tags such as input, textarea, and so on.

The operating environment of this tutorial: windows7 system, HTML5 version, Dell G3 computer.

There is an onchange event in html, which is triggered when the value of the element changes.

In html, you can set the onchange event by adding an onchange event attribute to the tag.

The onchange attribute applies to:, and elements.

Syntax:

Effect picture:

If you modify the text, there will be a pop-up prompt

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