将键和值与对象分开 [英] Separate keys and values from object

问题描述

我有一个像这样的对象:

I have an object like :

var obj1 = [{ first : 1, second : 2 },
            {third : 3, fourth : 4},
            {fifth : 5, sixth : 6}]; 

我想将键和 values 分成2个不同的 arrays ，这样结果应该是

I want to separate the keys and values into 2 different arrays such that the result should be

var labels = [first, second, third, fourth, fifth, sixth];
var values = [1,2,3,4,5,6]; 

我尝试过这个:

var labels = [];
var values = [];
for(var key in obj1[0]){
    labels.push(key);
    values.push(obj1[0][key]);
}

但是会导致

labels = ["first","second"];
values = [1,2];

我知道发生这种情况是因为我只迭代了 0 索引位置.谁能建议我实现预期输出的方法.

I know this happens because I am iterating only the 0 index position. Can anyone suggest me a way to achieve the expected output.

推荐答案

尝试这样

var obj1 = [{ first : 1, second : 2 },
            {third : 3, fourth : 4},
            {fifth : 5, sixth : 6}]; 

var key=[];
var value=[];
obj1.forEach(function(item){
 
  for(i in item)
  {
    key.push(i);
    value.push(item[i]);
  }
   
});

console.log(key);
console.log(value);

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