Question

来自此数组：

var arr = [
    {
    element: 'anything',
    order: 1
  }, 
  {
    element: 'something',
    order: 2
  }
]

我想生成这个：

arr = ['anything', 'something'];

该怎么做？

Answer 1

使用地图功能

  1 m = np.mean(df1.open)

  2 s = np.std(df1.open)

  3 df1 = df1[df1['open'] <= m + 2*s]

  4 df1 = df1[df1['open'] >= m - 2*s]
  5 df1.shape

E:\Anaconda-Installed\lib\site-packages\pandas\core\generic.py in 
    __getattr__(self, name)

3079             if name in self._info_axis:

3080                 return self[name]

3081    return object.__getattribute__(self, name)

3082 

3083     def __setattr__(self, name, value):

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map

Answer 2

您可以使用

之类的东西

var newArr = [];
$.each(arr, function(index, value) {
    newArr.push(value);
});

Answer 3

您可以使用香草js :，如@James L.所示：

arr.map(x => x.element);

或使用jQuery Map函数：

$.map(arr, function(val, i){
  return val.element;
})

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如何通过jQuery删除对象属性并从数组中获取特定值

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