您可以创建一个返回所需数组的函数：
然后，您可以映射并在JSON中的属性上调用它：

You could make a function that returns the array you want: You could then map through and call this on the properties in your JSON:

function makeArray(value) {
  return j.map(function(a) {
    return {[value]: a[value]};
  });
}

var labels = makeArray('label');

工作示例