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IE9之前不兼容addEventListener(),但是可以使用attachEvent。我该如何在一段代码中同时出现他们,就像css中-webkit-、-o-那样,不相关的浏览器直接忽略掉?是不是要判断一下?如何判断呢?还有别的办法吗?
欢迎选择我的课程,让我们一起见证您的进步~~
if(document.attachEvent) { document.attachEvent(...); } else { document.addEventListener(...); }
楼主,如果用原生js,可以像下面这么写,推荐你看下“javascript高级程序设计”这本书,里面讲的很通俗易懂哦
Document
var oX = document.getElementById('x'); var oDemo = document.getElementById('demo'); var eventUil = { addHandler:function(obj,type,fn){ if(obj.addEventListener){ obj.addEventListener(type,fn,false); }else if(obj.attachEvent){ obj.attachEvent("on"+type,fn); }else{ obj["on"+type] = fn; } }, removeHandler:function(obj,type,fn){ if(obj.removeEventListener){ obj.removeEventListener(type,fn,false); }else if(obj.deattachEvent){ obj.detachEvent("on"+type,fn); }else{ obj["on"+type] = null; } }
}
function x1() { document.getElementById('demo').innerHTML='123'; } eventUil.addHandler(oX,'click',x1);
http://caniuse.com/
楼主,如果用原生js,可以像下面这么写,推荐你看下“javascript高级程序设计”这本书,里面讲的很通俗易懂哦
}
http://caniuse.com/