你如何在Javascript中使用onPageLoad？

I tried using

我试过用

onPageLoad: function() {
    alert("hi");
}

but it won't work. I need it for a Firefox extension.

但它不会起作用。我需要它用于Firefox扩展。

Any suggestions please?

有什么建议吗?

5 个解决方案

#1

If you want to do this in vanilla javascript, just use the window.onload event handler.

如果你想在vanilla javascript中这样做,只需使用window.onload事件处理程序。

window.onload = function() {
  alert('hi!');
}

#2

Assuming you meant the onload-event:

假设你的意思是onload-event:

You should use a javascript library like jQuery to make it work in all browsers.

您应该使用像jQuery这样的javascript库,使其适用于所有浏览器。

<script type="text/javascript">
    $(document).ready(function() {
        alert("Hi!");
    });
</script>

If you really don't want to use a javascript library (Don't expect it to work well in all browsers.):

如果你真的不想使用javascript库(不要指望它在所有浏览器中都能正常工作。):

<script type="text/javascript">
    function sayHi() {
        alert("Hi!");
    }
</script>
<body onload="javascript:sayHi();">
...

#3

var itsloading = window.onload;

<body onload="doSomething();"></body> 
//this calls your javascript function doSomething

for your example

为你的例子

<script language="javascript">

function sayhi() 
{
  alert("hi")
}
</script>

<body onload="sayhi();"></body>

EDIT -

For the extension in firefox On page load example

对于firefox中的扩展页面加载示例

#4

http://www.w3schools.com/jsref/jsref_onload.asp

#5

       <script language="javascript">

    window.onload = onPageLoad();

    function onPageLoad() {
        alert('page loaded!');
        }
</script>

#1