Javascript-将数组数组转换为具有预填充值的对象数组 [英] Javascript - convert array of arrays into array of objects with prefilled values

问题描述

我有以下数组:

[
    [val1, val2]
    [val1, val2]
    [val1, val2]
    [valN, valN]
]

N表示这些数组不受限制的事实，即我永远不知道要存储多少数组.我试图完成的工作是使用键lat和lng将该数组转换为对象数组，我希望最终结果如下，以便可以将其用于其他需求:

N represents the fact that these arrays are not limited, i.e I never know how much of them do I store. What I try to accomplish is converting that array to array of objects with keys lat and lng and I expect so have final result as following so I can use it for further needs:

[
    {
        lat: val1,
        lng: val2
    },
    {
        lat: val1,
        lng: val2
    },
    {
        lat: valN,
        lng: valN
    }
]

我发现了一个将这些内部数组转换为对象的函数，它看起来像这样:

I found a function to convert these inner arrays to objects and it looks like this:

objectify(array) {
    return array.reduce(function(result, currentArray) {
        result[currentArray[0]] = currentArray[1];
        return result;
    }, {});
}

它可以工作，但输出看起来像这样:

It works but output looks like this:

[
    {val1: val1, val2: val2}
    {val1: val1, val2: val2}
    {valN: valN, valN: valN}
]

并不是我想要的，因为我真的需要这些lat和lng作为对象的键.我该如何解决这个问题?

and that's not what I'm looking for, because I really need these lat and lng to be keys of an object. How can I solve such issue?

推荐答案

您可以简单地使用

You can simply use Array.prototype.map to project an array into another one by applying a projection function:

var arrs = [
    [1, 2],
    [3, 4],
    [5, 6],
    [7, 8]
];

var objs = arrs.map(function(x) { 
  return { 
    lat: x[0], 
    lng: x[1] 
  }; 
});
console.log(objs);

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