TextArea setting value and dynamic problem of solving character length

Source: Internet
Author: User

1.

The onchange event is triggered only when the focus leaves textarea.
And onkeyup can be triggered just by typing.
The following is an example of dynamically displaying the length of text within a textarea:

1 . attr ("name", "textarea"). attr ("id", "chapcontent"). HTML (chapcontent)). attr ("onchange", " Changebuttonclass () ")2 . attr (" onkeyup "," Changebuttonclass () ");

2.

An issue with the TEXTAREA value setting is not correct.

This was done before calling. Clone () to avoid the problem:

$ ("#textareaId"). Text ($ (this). Val ());

TextArea setting value and dynamic problem of solving character length

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