How can I set the scroll bar of the textarea control to the bottom and bottom?

Source: Internet
Author: User

After a function adds content to the texterea control, how does it move its scroll bar to the bottom?

1st Floor
Does anyone know?

2nd floor
<Textarea name = "textarea" cols = "80" rows = "10" style = "overflow-y: hidden; overflow-x: scroll;"> </textarea>

Third floor
<Textarea rows = 10 cols = 20 id = "oTextarea"> ksaljdf
Fffffffff </textarea>
<Input type = "button" value = "set" onclick = "oTextarea. scrollTop = oTextarea. scrollHeight">

4th floor
// You can also move the cursor.
Function setCursor (){
Range = document. all. demo. createTextRange (); // The demo is the id of textarea.
Range. collapse (false );
Range. moveStart ('character ', 0 );
Range. select ();

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