javascript trigger触发事件

时间：2022-05-30 07:06:21
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">

<head>

    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">

    <title>Document</title>

</head>

<body>

    <div id="div1" onclick="alert(11)" style="width:100px; height:100px; background:red;"></div>

</body>

</html>

<script>

    function trigger(el,type){

        try{

            //w3c

            var evt = document.createEvent('Event');

            evt.initEvent(type,true,true);

            el.dispatchEvent(evt);

        }catch(e){

            //ie

            el.fireEvent('on' + type);

        }

    }

    var div = document.getElementById('div1');

    trigger(div,'click');

</script>

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