如何将json从特定的数组字符串解析为数组对象？

Question

JSON object:

{
    "data": {
        "myStatus": "[1 2 21 0 50 0 0 0],[2 1 3 1 50 0 0 0]"
    },
    "success": true
}

When we converting to the json object, it returning the myStatus is just string. want to convert/parse as Array as it is..

Normally it should return in json object like below.

var jsonObj= JSON.parse(<abovestring>);
jsonObj.data.myStatus[0] => [1 2 21 0 50 0 0 0];
jsonObj.data.myStatus[0][0] => 1
jsonObj.data.myStatus[0][1] => 2
jsonObj.data.myStatus[0][2] => 21

Is it possible to split like this?

Answer 1

You could use String#split along with Array#map to do this:

 let str = "[1 2 21 0 50 0 0 0],[2 1 3 1 50 0 0 0]"; let arr = str .split(',') .map(item => item.slice(1, -1)) .map(item => item.split(' ')); console.log(arr); 

But this is very dirty approach, and is prone to bugs if the string format changes. You should instead try to fix your JSON format.

Answer 2

the quotation marks around the list make JSON.parse treat it like a string, as it really is a string.

try either changing it to a valid array by removing the quotation marks, adding [] square brackets around the array, and adding , commas between elements , eg:

{
    "data": {
        "myStatus": [[1, 2, 21, 0, 50, 0, 0, 0], [2, 1, 3, 1, 50, 0, 0, 0]]
    },
    "success": true
}

if u have no control over your json string and it must contain a string for data.myStatus , then you'd need an additional step to parse it manually. eg

var string = jsonObj.data.myStatus;
string = `[${string}]`;
string = string.replace(/ +/g, ',');
jsonObj.data.myStatus = JSON.parse(string);