<script>
// forEach
var arr = ['zhangsan','lisi','wangwu'];
arr.forEach(function(value,key){
console.log(value,key);
})
var obj = [
{username:"zhagnsan",age:20,sex:1},
{username:"lisi",age:20,sex:1},
{username:"wangwu",age:20,sex:1},
];
obj.forEach(function(value,key){
console.log(value['username'],value['age'],value['sex']);
})
</script>
forEach遍歷小實例
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