获取数组的第一项 [英] Get first item of the array

问题描述

i used split() to a string  "Haste, Haste, Please Haste, Please Haste to the Mountain" in an array. I have three variables v1, v2, v3 all string type.
I want the result as follows:
V3 = Please Haste to the Mountain
V2 = Please Haste
V1 = Haste, Haste ("Haste, " can be repeated in this substring)
I was able to retrieve V3 and v2 using  jquery but getting a little stuck when it comes to V1.
My array should be like this:

array[0]                                array[1]  array[2]
------------------------------------------------------------------------------
Haste, Haste, Haste,......Haste | Please Haste | Please Haste To The Mountain |
------------------------------------------------------------------------------

Please help

。

推荐答案

var str = "Haste,Please Haste, Please Haste to the Mountain"
    var arr = str.split(',');

    var V3, V2, V1 = '';

    V3 = arr[3];
    V2 = arr[2];
    for (var i = 0; i < 10; i++) {
        if (i == 0) { V1 += arr[0]; }
        else if (i > 1 && i < 3) { V1 += ',' + arr[0]; }
        else if (i >= 3 && i < 9) { V1 += '.' }
        else  {V1+= arr[0] }
    }

试试这段代码

Try this code

var str = "Haste,Please Haste, Please Haste to the Mountain"
    var arr = str.split(',');
    var v1="",v2,v3,temp="";
    arr.foreach(function(item){
    if(item=="Haste"){
    v1=v1+","+item;
    }
    else{
    temp=temp+","+item;
    }
    });
   var arr2=temp.split(',');
   v2=temp[0];
   v3=temp[1];

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