[英]convert a string into a two-dimensional array in javascript
I'm trying to convert a string like this "10|15|1,hi,0,-1,bye,2"
where the first two elements 10|15
mean something different than 1,hi,0,-1,bye,2
. 我正在尝试转换像这样的字符串
"10|15|1,hi,0,-1,bye,2"
,其中前两个元素10|15
表示不同于1,hi,0,-1,bye,2
的字符1,hi,0,-1,bye,2
。 I would like to separate them from each other. 我想将它们彼此分开。 A naive way to accomplish that would be:
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). (当然,如果你知道如何以更好的方式做到这一点,我会很高兴知道)。 However,
array
is 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 但是,
array
是一个数组,其中包含array[0]=1, array[1]=hi, array[2]=0, array[3]=-1
等。但是,我想获得一个二维数组,如如
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
The first two elements ( 10|15
) can be extracted beforehand. 可以预先提取前两个元素(
10|15
)。 After that you're left with: 之后你就离开了:
var a = "1,hi,0,-1,bye,2";
Let's splice until we're left with nothing: 让我们拼凑起来,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"]]
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;
}
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;
}
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