1 split(' ') 切割符
把字符串分割為數(shù)組 引號間用空格

<div class="app">
    <h1>{{huan}}</h1>
</div>
<script>
    new Vue({
        el:'.app',
        data:{
            mag:'hell vue'
        },
        computed:{
            huan:function(){
                return this.mag.split(' ')
            }
        }
    })
</script>
//輸出結(jié)果為：[ "hell", "vue" ]

2 join 拼接符

<div class="app">
    <h1>{{huan}}</h1>
</div>
<script>
    new Vue({
        el:'.app',
        data:{
            mag:'hell vue'
        },
        computed:{
            huan:function(){
                return this.mag.split(' ').join
            }
        }
    })
</script>
//輸出結(jié)果為：hell,vue

3 reverse 翻轉(zhuǎn)

<div class="app">
    <h1>{{huan}}</h1>
</div>
<script>
    new Vue({
        el:'.app',
        data:{
            mag:'hell vue'
        },
        computed:{
            huan:function(){
                return this.mag.split(' ').reverse
            }
        }
    })
</script>
//輸出結(jié)果為：[ "vue", "hell" ]

4 *** string***
把對象的值轉(zhuǎn)為字符串

        <button onclick="myFunction()">點(diǎn)擊</button>
        <script>
            function myFunction(){
                var ff= ["Banana", "Orange", "Apple", "Mango"];
                var str = ff.toString();
                var a=document.getElementById("demo");
                a.innerHTML= str;
            }
       </script>

5 concat 用于連接兩個或多個數(shù)組

<script type="text/javascript">
var a = [1,2,3];
document.write(a.concat(4,5));
</script>
//輸出結(jié)果為：1,2,3,4,5

6 slice
從已有的數(shù)組中返回選定的元素

<script>

var arr = new Array(6)
arr[0] = "George"
arr[1] = "John"
arr[2] = "Thomas"
arr[3] = "James"
arr[4] = "Adrew"
document.write(arr.slice(2,4) + "<br />")
</script>
//輸出結(jié)果為：Thomas,James

7 splice('坐標(biāo)下添加 '‘刪除0個或一個’)
從數(shù)組中添加/刪除項(xiàng)目办陷，然后返回被刪除的項(xiàng)目

<script>
var arr = new Array(6)
arr[0] = "George"
arr[1] = "John"
arr[2] = "Thomas"
arr[3] = "James"
arr[4] = "Adrew"
arr[5] = "Martin"
arr.splice(2,0,"William")
document.write(arr)
</script>
//輸出結(jié)果為：George,John,William,Thomas,James,Adrew,Martin

8 ***push() ***
向數(shù)組的末尾添加一個或多個元素乡洼，并返回新的長度责静。

var arr = new Array(3)
arr[0] = "George"
arr[1] = "John"
arr[2] = "Thomas"
document.write(arr.push("James") )//輸出結(jié)果為：4
document.write(arr)//輸出結(jié)果為：George,John,Thomas,James

9 pop()
刪除并返回?cái)?shù)組的最后一個元素。

<script>
    var arr = new Array(3)
    arr[0] = "George"
    arr[1] = "John"
    arr[2] = "Thomas"
    document.write(arr.pop())
    document.write(arr)
</script>
//輸出結(jié)果為：Thomas
//輸出結(jié)果為：George,John

10 unshift
向數(shù)組的開頭添加一個或更多元素斤富，并返回新的長度

<script type="text/javascript">

    var arr = new Array()
    arr[0] = "George"
    arr[1] = "John"
    arr[2] = "Thomas"

    document.write(arr + "<br />")
    document.write(arr.unshift("William") + "<br />")
    document.write(arr)
//輸出結(jié)果為：
George,John,Thomas
4
William,George,John,Thomas

11 shift()
把數(shù)組的第一個元素從其中刪除圾旨，并返回第一個元素的值妙黍。

<script type="text/javascript">

var arr = new Array(3)
arr[0] = "George"
arr[1] = "John"
arr[2] = "Thomas"

document.write(arr + "<br />")
document.write(arr.shift() + "<br />")
document.write(arr)

</script>
//輸出結(jié)果為：
George,John,Thomas
George
John,Thomas