Vuejs从数组中删除元素的示例代码

<template>
 <div class="users">
	<button type="button" class="btn btn-danger" v-on:click="deleteUser(user)"><span class="glyphicon glyphicon-trash" aria-hidden="true"></span>删除</button>	
 </div>
</template>

<script>
//引入Jquery

export default {

  data(){
		return {
			
			users:[
				{
					name:'zx',
					age:18,
					addrress:'江苏南京',
					email:'1773203101@qq.com',
					contacted:false,
				},
				{
					name:'zhiyi',
					age:19,
					addrress:'中国北京',
					email:'1773203101@qq.com',
					contacted:false,
				},
				{
					name:'zhuxu',
					age:20,
					addrress:'中国上海',
					email:'1773203101@qq.com',
					contacted:false,
				},
			]
		}
	},
	methods:{
		deleteUser:function(user){
			//表示先获取这个元素的下标，然后从这个下标开始计算，删除长度为1的元素
			this.users.splice(this.users.indexOf(user),1);
		}
	}
};
</script>
<!-- Add "scoped" attribute to limit CSS to this component only -->
<!--scope只会影响到当前组件的样式-->
<style scoped>
</style>

let arr = [1,2,3,4,5];

//方法一
let index = arr.indexOf('3');
arr.splice(index, 1)
//打印结果 [1,2,4,5]
//方法二
let index = arr .findIndex(item => {
            if (item == '3') {
              return true
            }
          })
arr.splice(index, 1)
//打印结果 [1,2,4,5]

let arr = [
    {
       id:1,
       name:'张三'
    },
    {
       id:2,
       name:'李四'
    },
    {
       id:3,
       name:'王二'
    },
    {
       id:4,
       name:'麻子'
    },
];
let id1 = arr.findIndex(item => {
      if (item.id == '3') {
          return true
      }
 })
 arr.splice(id1, 1)