javascript function limit calling code_javascript skills

Function:

Copy code The code is as follows:

function throttle(fn,ms) {
var last = (new Date()).getTime();
return (function() {
var now = (new Date()).getTime();
if (now - last > ms) {
last = now;
fn.apply(this, arguments);
}
});
}

parameters fn: Incoming function/method
Parameter ms: The interval (in milliseconds) between each function call. If you enter 2000, the function will not be triggered repeatedly within 2 seconds.

Attached is an initialization example

Copy code The code is as follows:

document.getElementById('pop').onclick = throttle(function (){
alert(this.id);
},2000)

scope setting For the caller itself
fn.apply(this, arguments);

Examples

<title> New Flowers </title> <style type="text/css"> #pop{ width:100px; height:100px; background:#ccc; } </style> <div id="pop">Vacated seats are waiting</div>
[Ctrl A select all Note: If you need to introduce external Js, you need to refresh to execute

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