一种更有效/更高效的方式来添加元素和对数组进行排序

Question

我的函数下面返回一个对象,该对象包含playerPoints通过"对象数组"参数传入的已排序.如果不修改传入的数组,是否有更高效/更高效的方法来添加元素并按升序对数组进行排序？

注意:对象数组可以包含一个或多个对象.在效率方面,我指的是完成时间(速度).函数ascendingSort也是必需的,不能替换.

var data = [{playerPoints: 10}, {playerPoints: 8}, {playerPoints: 2}, {playerPoints: 21},{playerPoints: 30}];

function ascendingSort(players) {
	var points = [];
	for(var i = 0; i < players.length; i++) {
		points.push(players[i].playerPoints);
	}
	points.sort(function(a, b) {return a - b;});
	return {sortedPoints: points};
}

var obj = ascendingSort(data);
console.log(obj);

Answer 1

要简化此功能,可以使用该map()方法将对象映射到playerPoints属性.此外,您可以将传递给sort()method(function(a, b) {return a - b;})的常规函数​​更改为箭头函数((a, b) => a - b).

const data = [{playerPoints: 10}, {playerPoints: 8}, {playerPoints: 2}, {playerPoints: 21},{playerPoints: 30}]

function ascendingSort(players) {
  return {
    sortedPoints: data.map(x => x.playerPoints).sort((a, b) => a - b)
  }
}

const obj = ascendingSort(data)
console.log(obj)

至于性能,我怀疑有一个比你已有的更快的解决方案.