The setTimeout() method is used to call a function or calculation expression after the specified number of milliseconds.
grammar
setTimeout(code,millisec)
| parameter | description |
|---|---|
| code | Required. The JavaScript code string to be executed after the function to be called. |
| millisec | Required. The number of milliseconds to wait before executing the code. |
Tip: setTimeout() executes code only once. If you want to call it multiple times, use setInterval() or let the code itself call setTimeout() again.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script src="../js/jquery-1.11.0.min.js"></script>
<script>
//页面加载事件
$(function(){
setTimeout(show,2000)
})
function show() {
$("#ad").fadeIn(10000);
setTimeout(hide,2000)
}
function hide() {
$("#ad").fadeOut(10000);
}
</script>
</head>
<body>
<div id="ad" style="width:100%;display: none;">
<img src="../img/ad_.jpg" width="100%" />
</div>
</body>
</html>