javascript - 数组转换给出字符串而不是数组

Question

我想将两个数组转换成另一种数组格式。

这是我的代码:

var array1 = [ "Kolkata", "Begumpet", "Bellary"];

var array2 = [[[20,"Kolkata1"],[10,"Kolkata2c"]],
              [[0,"Begumpet1"],[10, "Begumpet2e"]],
              [[30, "Bellary1"],[0, "Bellary2a"]]]

console.log(array2);
var resultvalue = [];
for (i = 0; i < array2.length; i++) {
    var result = "";
    var m = 0;
    for (j = 0; j < array2[i].length; j++) {
        if(m==0){
            result += "label: '" + array1[i] + "',";
            m++;
        }
        result += " '" + array2[i][j][1] + "': " + array2[i][j][0] + ", ";
    }
    resultvalue.push(result);
}
console.log(resultvalue);

它产生了我想要的结果，除了结果是一个字符串，而我需要实际的数组。

预期的输出对象应该是这样的:

dataset = [
    {label:"Kolkata", "Kolkata1":20, "Kolkata2c":10},
    {label:"Begumpet", "Begumpet1":0, "Begumpet2e":10},
    {label:"Bellary", "Bellary1":30, "Bellary2a":0},
];

Answer 1

您可以迭代 array2 并为每个条目映射一个新对象。

var array1 = ["Kolkata", "Begumpet", "Bellary"],
    array2 = [[[20, "Kolkata1"], [10, "Kolkata2c"]], [[0, "Begumpet1"], [10, "Begumpet2e"]], [[30, "Bellary1"], [0, "Bellary2a"]]],
    dataset = array2.map(function (a, i) {
        var o = { label: array1[i] };
        a.forEach(function (b) {
            o[b[1]] = b[0];
        });
        return o;
    });

console.log(dataset);

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