JavaScript pages automatically load events
- 2020-03-30 01:37:19
- OfStack
Method 1:
Method 2: need to introduce Jquery's.js file
Method 3: (equivalent to method 2)
Method 4 :(same as above)
Method 5-1: window.onload event (load multiple functions at the same time...)
Method 5-2: window.onload event (load multiple functions at the same time...)
Window.onload=function(){
Var name=document.getElementById( " name " ).val();//Load the HTML, and load all external reference files (images, CSS styles, js, etc.)
}
Method 2: need to introduce Jquery's.js file
$(document).ready(function(){
alert("JQuery The first entry case ");//Load the HTML, without waiting, immediately
});
Method 3: (equivalent to method 2)
jQuery(function (){
if($("input[name='message']").val()!="")
alert($("input[name='message']").attr("value"));
});
Method 4 :(same as above)
$(function (){
alert("JQuery Executed when the page is automatically loaded 1 ....");
});
Method 5-1: window.onload event (load multiple functions at the same time...)
<html>
<body onload="function1(),function2(),function3()">
</body>
</html>
<script >
function1(){
}
function2(){
}
function3(){
}
</script>
Method 5-2: window.onload event (load multiple functions at the same time...)
<html>
<body>
</body>
<html>
<script>
function1(){
}
function2(){
}
function3(){
}
window.onload=function(){
function1();
function2();
function3();
}
</script>