How jquery listens for changes in textarea values

This article mainly introduces jquery how to monitor whether the textarea value changes related knowledge, detailed and easy to understand, simple and fast operation, with a certain reference value, I believe that everyone reading this article jquery how to monitor whether the textarea value changes articles will have some gains, let's take a look at it.

Listening methods: 1. Use change() to bind events to textarea elements, and set processing functions, syntax "$("textarea").change(processing function)";2. In the function, set "alert(" value is modified ");" statement;3. If the value is modified, trigger the processing function and pop up a prompt.

This tutorial operates on Windows 7, jquery version 1.10.2, Dell G3 PC.

jquery Method of monitoring whether textarea value changes

Implementation method:

Use change() to bind change events to textarea elements and set event handlers

In functions, alert() is used to indicate that the textarea value has been modified.

If the value is modified, the processing function is triggered and a prompt pops up.

Implementation example:

$(document).ready(function() { $("textarea").change(function() { alert("Text has been modified"); }); }); hello

Write something in the input box or modify the text, then press enter or click outside the input box.

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