本篇内容主要讲解“怎么为动态生成的html元素增加事件处理”,感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“怎么为动态生成的html元素增加事件处理”吧!
function klik()...{
alert("ppp");
}
function addNewImg(newImageId)...{
newImg = document.createelement('img');
newImg.id = "image"+newImageId;
newImg = document.getElementById("divimage1").appendChild(newImg);
newImg.onclick=klik
}
it works. The new image is created and after clicking on it "ppp" is alerted.
but when I use this:
function klik(ff)...{
alert(ff);
}
function addNewImg(newImageId)...{
newImg = document.createelement('img');
newImg.id = "image"+newImageId;
newImg = document.getElementById("divimage1").appendChild(newImg);
newImg.onclick=klik("ppp");
}
"ppp" is alerted in the moment of executing the statement newImg.onclick=klik("ppp"); and when clicking on the generated image nothing happens, even Javascript Console of Firefox stays blind.
function addNewImg(newImageId)...{
newImg = document.createelement('img');
newImg.id = "image"+newImageId;
newImg = document.getElementById("divimage1").appendChild(newImg);
var onC='ppEdit("image'+newImageId+'","image")';
document.getElementById("image"+newImageId).onclick=new Function(onC);
}
it works
maybe an object detection be great to add too
why?
So browsers that understand document.getElementById,
document.createelement execute the code.
function addNewImg(newImageId)...{
//object detection check
if (!document.getElementById &&!document.createelement)...{return;}
newImg = document.createelement('img');
newImg.id = "image"+newImageId;
newImg = document.getElementById("divimage1").appendChild(newImg);
var onC='ppEdit("image'+newImageId+'","image")';
document.getElementById("image"+newImageId).onclick=new Function(onC);
}
alternative solution:
if (!document.getElementById) ...{return;}
document.getElementById("image"+newImageId).onclick=function()...{
ppEdit(this.id, "image");
}
到此,相信大家对“怎么为动态生成的html元素增加事件处理”有了更深的了解,不妨来实际操作一番吧!这里是亿速云网站,更多相关内容可以进入相关频道进行查询,关注我们,继续学习!
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