vue更改数组中的值实例代码详解

//添加
arr.push(1);
//删除
arr.splice(,);
//替换
arr.splice(,,);

<script type="text/javascript">
var arr = new Array(6)
arr[0] = "Gee"
arr[1] = "John"
arr[2] = "Thomas"
arr[3] = "James"
arr[4] = "Adrew"
arr[5] = "Martin"
document.write(arr + "<br />")
arr.splice(2,0,"William")
document.write(arr + "<br />")
</script>

<script type="text/javascript">
var arr = new Array(6)
arr[0] = "Gee"
arr[1] = "John"
arr[2] = "Thomas"
arr[3] = "James"
arr[4] = "Adrew"
arr[5] = "Martin"
document.write(arr + "<br />")
arr.splice(2,1,"William")
document.write(arr)
</script>

<script type="text/javascript">
var arr = new Array(6)
arr[0] = "Gee"
arr[1] = "John"
arr[2] = "Thomas"
arr[3] = "James"
arr[4] = "Adrew"
arr[5] = "Martin"
document.write(arr + "<br />")
arr.splice(2,3,"William")
document.write(arr)
</script>