js冒泡事件相容火狐瀏覽器
阿新 • • 發佈：2019-02-03
<body> <div id="out"> <div id="middle"> <div id="inner"></div> </div> </div> </body> <script> $("#out").on('click',function(){ alert("點了外面的"); }); $("#middle").on('click',function(ev){ cancelBubble(ev); alert("點了中間的"); }); $("#inner").on('click',function(ev){ cancelBubble(ev); alert("點了裡面的"); }); //阻止冒泡到下一個事件 function cancelBubble(ev){ var ev = getEvent(); if (window.event) { ev.cancelBubble = true; }else if(ev.preventDefault){ ev.stopPropagation();//阻止冒泡 } } //相容火狐 獲取event方法 function getEvent(){ if(window.event){return window.event;} var func = getEvent.caller; while(func != null){ var arg0 = func.arguments[0]; if(arg0){ if((arg0.constructor == Event || arg0.constructor == MouseEvent || arg0.constructor == KeyboardEvent) || (typeof(arg0) == "object" && arg0.preventDefault && arg0.stopPropagation)){ return arg0; } } func = func.caller; } return null; } </script>