How to add onload event to a div element

前端未结

关注

 24  2253

谎友^

How do you add an onload event to an element?

Can I use:

for t

相关标签:

24条回答

醉酒成梦

2020-11-22 00:49

When you load some html from server and insert it into DOM tree you can use DOMSubtreeModified however it is deprecated - so you can use MutationObserver or just detect new content inside loadElement function directly so you will don't need to wait for DOM events

var ignoreFirst=0;
var observer = (new MutationObserver((m, ob)=>
{
  if(ignoreFirst++>0) {
    console.log('Element add on', new Date());
  }
}
)).observe(content, {childList: true, subtree:true });


// simulate element loading
var tmp=1;
function loadElement(name) {  
  setTimeout(()=>{
    console.log(`Element ${name} loaded`)
    content.innerHTML += `<div>My name is ${name}</div>`; 
  },1500*tmp++)
}; 

loadElement('Michael');
loadElement('Madonna');
loadElement('Shakira');

<div id="content"><div>

0 讨论(0)

暗喜

2020-11-22 00:52

we can use MutationObserver to solve the problem in efficient way adding a sample code below

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <style>
        #second{
            position: absolute;
            width: 100px;
            height: 100px;
            background-color: #a1a1a1;
        }
    </style>
</head>
<body>
<div id="first"></div>
<script>
    var callthis = function(element){
           element.setAttribute("tabIndex",0);
        element.focus();
        element.onkeydown = handler;
        function handler(){
                alert("called")
        }
    }


    var observer = new WebKitMutationObserver(function(mutations) {
        mutations.forEach(function(mutation) {
            for (var i = 0; i < mutation.addedNodes.length; i++)
            if(mutation.addedNodes[i].id === "second"){
                callthis(mutation.addedNodes[i]);
            }

        })
    });
    observer.observe(document.getElementById("first"), { childList: true });


    var ele = document.createElement('div');
    ele.id = "second"

    document.getElementById("first").appendChild(ele);

</script>

</body>
</html>

0 讨论(0)

爱一瞬间的悲伤

2020-11-22 00:53
I had the same question and was trying to get a Div to load a scroll script, using onload or load. The problem I found was that it would always work before the Div could open, not during or after, so it wouldn't really work.

Then I came up with this as a work around.
```
<body>

<span onmouseover="window.scrollTo(0, document.body.scrollHeight);" 
onmouseout="window.scrollTo(0, document.body.scrollHeight);">

<div id="">
</div>

<a href="" onclick="window.scrollTo(0, document.body.scrollHeight);">Link to open Div</a>

</span>
</body>
```
I placed the Div inside a Span and gave the Span two events, a mouseover and a mouseout. Then below that Div, I placed a link to open the Div, and gave that link an event for onclick. All events the exact same, to make the page scroll down to bottom of page. Now when the button to open the Div is clicked, the page will jump down part way, and the Div will open above the button, causing the mouseover and mouseout events to help push the scroll down script. Then any movement of the mouse at that point will push the script one last time.
0 讨论(0)
发布评论:

提交评论
- 加载中...
慢半拍i

2020-11-22 00:54
I really like the YUI3 library for this sort of thing.
```
<div id="mydiv"> ... </div>

<script>
YUI().use('node-base', function(Y) {
  Y.on("available", someFunction, '#mydiv')
})
```
See: http://developer.yahoo.com/yui/3/event/#onavailable
0 讨论(0)
发布评论:

提交评论
- 加载中...
猫巷女王i

2020-11-22 00:55
Try this! And never use trigger twice on div!

You can define function to call before the div tag.
```
$(function(){
    $('div[onload]').trigger('onload');
});
```
DEMO: jsfiddle
0 讨论(0)
发布评论:

提交评论
- 加载中...

猫巷女王i

2020-11-22 00:55

You cannot add event onload on div, but you can add onkeydown and trigger onkeydown event on document load

$(function ()
{
  $(".ccsdvCotentPS").trigger("onkeydown");
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.2.3/jquery.min.js"></script>

<div  onkeydown="setCss( );"> </div>`

0 讨论(0)