JavaScript content selection event (onselect)
Content selection event (onselect)
Select event, when the text in the text box or text field is selected, the onselect event is triggered. The program called at the same time will be executed.
In the following example, when text is selected, a warning dialog box for prohibiting assignment pops up
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>php.cn</title>
<script>
function fun(){
window.alert("這是個人簡介，禁止復制")
}
</script>
</head>
<body>
<form>
個性介紹：<br/><textarea name=" introduction" cols="30" rows="4" onselect="fun()">小明：
PHP高級工程師
全棧工程師</textarea>
</form>
</body>
</html>
