jquery循環1:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<script src="js/jquery-1.12.4.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$(function(){
var str=[1,2,3,4];
//str,爲要遍歷的數組,這裏必須傳兩個function裏面必須傳兩個參數,第一參數爲索引,第二個爲值
$.each(str,function(i,n){
console.log(n)
})
})
</script>
<body>
</body>
</html>
jquery循環2:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<script src="js/jquery-1.12.4.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$(function(){
$("p").each(function(i,n){
console.log($(this).text())
})
})
</script>
<body>
<p>1</p>
<p>2</p>
<p>3</p>
<p>4</p>
<p>5</p>
</body>
</html>
js循環用的是forEach()方法:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body onload="test()">
<script type="text/javascript">
function test(){
var str=[1,2,3,4];
//i表示值,n表示索引
str.forEach(function(i,n){
console.log(i)
})
}
</script>
</body>
</html>