将对象数组转换为对象值的数组 [英] Convert an array of objects to array of the objects' values

问题描述

我正在尝试转换此数组

let orders = [
  {  amount: '100', user: 'admin', date: 'March 6, 2019' },
  {  amount: '120', user: 'admin', date: 'March 6, 2019' },
  {  amount: '80', user: 'admin', date: 'March 7, 2019' },
  {  amount: '200', user: 'admin', date: 'March 7, 2019' },
];

像这样

orders = [
  ['100', 'admin', 'March 6, 2019'],
  ['120', 'admin', 'March 6, 2019'],
  ['80', 'admin', 'March 7, 2019'],
  ['200', 'admin', 'March 7, 2019'],
];

并且我已经读到Objects.values()返回数组中的值，所以我尝试通过使用forEach()并在数组中的每个项目上使用Object.values来遍历order数组.

and I have read that Objects.values() returns the values in an array, so I tried to iterate through the order array by using forEach() and using the Object.values on each item in the array.

let newOrders = orders.forEach(order => {
  return Object.values(order);
});

我不知道我在做什么是否正确，并且对Javascript还是陌生的.请帮助我.

I don't know if what I am doing is right and I am new to Javascript. Please help me.

推荐答案

按照

As order of values in array returned by Object.values() isn't guaranteed, you should consider use of .map() with some Object Destructuring. You can then extract object properties in separate variables and return them in desired order explicitly.

const data = [
  { amount: '100', user: 'admin', date: 'March 6, 2019' },
  { amount: '120', user: 'admin', date: 'March 6, 2019' },
  { amount: '80',  user: 'admin', date: 'March 7, 2019' },
  { amount: '200', user: 'admin', date: 'March 7, 2019' }
];

const result = data.map(({ amount, user, date }) => [amount, user, date]);

console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }

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