Home Web Front-end JS Tutorial Dynamically add js code examples for events_javascript skills

Dynamically add js code examples for events_javascript skills

May 16, 2016 pm 06:56 PM
js event dynamic

Copy code The code is as follows:

<HTML>
<HEAD>
&lt ;script language="javascript">
attachEvent("onblur", blur);
function blur()
{
document.all.form.username.attachEvent("onblur", blur );
if(event.srcElement == document.all.form.username){
alert("efewef");
}
}
</script>
</HEAD>
<BODY>
<form name="form">
<input type="text" name="username" onblur="alert('hello') ">
</form>
</BODY>

The execution order is:
execute alert("hello") first;
then execute alert("efewef");
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