1.直接遍历数组
<body>
<table>
<thead>
<tr>
<th>姓名</th>
<th>年龄</th>
</tr>
</thead>
<tbody>
<tr>
<td>zhangsan</td>
<td class="age"></td>
</tr>
<tr>
<td>lisi</td>
<td class="age"></td>
</tr>
</tbody>
</table>
</body>
<script>
var data=[{
name:'zhangsan',
age:'20'
},{
name:'lisi',
age:'10'
}];
var age=$(".age");
$.each(data,function(index,item){
// 获取每个对象的属性
console.log($(item)[0].age) //20 10
console.log(data[index].age) //20 10
$.each(data,function(index,item){
// 实现数组的赋值
age[index].innerHTML=data[index].age;
})
})
</script>2.遍历dom元素
<ul>
<li class="active">1</li>
<li>2</li>
<li>1</li>
<li>2</li>
</ul>
<script>
var pageColor=['#fdbc0d','#01cecb','#0287fe','#fe7293'];
$("li").each(function(index,item){
if($(item).hasClass("active")){
$(this).css("color",pageColor[index])
$(this).siblings("li").css("color","#FA8072")
}
})
</script>