Question

如何将以下字符串转换为javascript中的数组

var data = "[
  [[1400586475733,-1],
  [1400586535736,-1],
  [1400586595739,-1],
  [1400586655742,-1],
  [1400586715745,-1]],
  [[1400586475733,0],
  [1400586535736,0],
  [1400586595739,0],
  [1400586655742,0],
  [1400586715745,0]]
]";

预期产出

data[0] = [[1400586475733,-1],[1400586535736,-1],[1400586595739,-1],[1400586655742,-1],[1400586715745,-1]]; ==> of type object Array

data[0][0] = 1400586475733 ==> of type number
data[0][1] = -1 ==> of type number

Answer 1

我还没有彻底尝试过，但它应该有效：

var string = "[[[1400586475733,-1],[1400586535736,-1],[1400586595739,-1],[1400586655742,-1],[1400586715745,-1]],[[1400586475733,0],[1400586535736,0],[1400586595739,0],[1400586655742,0],[1400586715745,0]]]";


var dataFromString = string.split(",");

var finalArray = [];

var arrayStartRegEx = new RegExp(/^\[/);
var arrayEndRegEx = new RegExp(/\]$/);


var currentArray = finalArray;

var arrayHistory = [];

for(var i = 0; i < dataFromString.length; i++) {

var currentString = dataFromString[i];

var closingArray = false;

    while(arrayStartRegEx.test(currentString) === true) {
        // Save previous array
        // createArray
        // add to big array
        // currentArray = createdArray
        // remove bracket
        var arr = []
        arrayHistory.push(currentArray);
        currentArray.push(arr);
        currentArray = arr;
        currentString = currentString.slice(1,currentString.length - 1);        
    } 
    while(arrayEndRegEx.test(currentString) === true){  
        // remove bracket
        // add element to array
        // close currentArray
        // currentArray = big array
        currentString = currentString.slice(0,-1);
        if(!closingArray) {
            var string = currentString.replace(/\]/g, '');
            // Use parseFloat if you know it's going to be a float
            currentArray.push(parseInt(string));
            closingArray = true;
        }

        currentArray = arrayHistory.pop();

    } 
    if(arrayStartRegEx.test(currentString) === false && arrayEndRegEx.test(currentString) === false) {
        // add element to array
        currentArray.push(parseInt(currentString))
    }

}

console.log(finalArray);

在javascript中将字符串转换为数字数组

1 个答案: