javascript 在javascript中将字符串转换为二维数组
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convert a string into a two-dimensional array in javascript
提问by Robert Smith
I'm trying to convert a string like this "10|15|1,hi,0,-1,bye,2"where the first two elements 10|15mean something different than 1,hi,0,-1,bye,2. I would like to separate them from each other. A naive way to accomplish that would be:
我正在尝试转换这样的字符串"10|15|1,hi,0,-1,bye,2"，其中前两个元素的10|15含义与1,hi,0,-1,bye,2. 我想把它们彼此分开。实现这一目标的一种天真的方法是：
value = string.split("|");
var first = value[0];
var second = value[1];
var tobearray = value[2];
array = tobearray.split(",");
(Of course, if you know a way to do this in a better way, I'd be glad to know).
However, arrayis an array which contains array[0]=1, array[1]=hi, array[2]=0, array[3]=-1, etc. However, I want to obtain a two dimensional array such as
（当然，如果你知道一种更好的方法，我很高兴知道）。但是，array是一个包含array[0]=1, array[1]=hi, array[2]=0, array[3]=-1等的数组。但是，我想获得一个二维数组，例如
array[0][0]=1, array[0][1]=hi, array[0][2]=0
array[1][0]=-1, array[1][1]=bye, array[1][2]=2
Is there any way to do that?
有没有办法做到这一点？
Thanks
谢谢
回答by James
The first two elements (10|15) can be extracted beforehand. After that you're left with:
10|15可以预先提取前两个元素 ( )。之后你剩下：
var a = "1,hi,0,-1,bye,2";
Let's spliceuntil we're left with nothing:
让我们拼接直到我们一无所有：
var result = [];
a = a.split(',');
while(a[0]) {
result.push(a.splice(0,3));
}
result; // => [["1","hi","0"],["-1","bye","2"]]
回答by Abdel1 O.
function getMatrix(input_string)
{
var parts = input_string.split('^');
for (var t=0; t<parts.length; t++)
{
var subparts = parts[t].split('*');
parts[t] = subparts.splice(0,subparts.length);
}
return parts;
}
回答by kojiro
function getMatrix(input_string) {
var parts = input_string.split('|');
var subparts = parts.pop().split(',');
var partlen = subparts.length / parts.length;
for (var i=0; i<parts.length; i++) {
parts[i] = subparts.splice(0,partlen);
}
return parts;
}
