如何在JavaScript中配对来自不同数组的两个项目？

Question

我们假设我有两个包含对象的数组。

 var teams = [tobj1, tobj2 ...]
 var players = [pobj1, pobj2 ...]

对象有1个属性（名称：teamname / playername）。

var tobj1 = {
name: playername // this comes from an inputfield
}

我要做的是将一支球队随机配对，直到每支球队都有一名球员。团队数量等于玩家数量。

提示：这将是一个足球抽奖应用程序

谢谢您的帮助。

Answer 1

let players = [ { name: 'a' }, { name: 'b' }, { name: 'c' } ];
const teams = [ { name: '1' }, { name: '2' }, { name: '3' } ];

const appairedTeams = teams.map( team => {
  let index = Math.floor(Math.random() * players.length);

  team.player = players[index];

  players.splice(index, 1);

  return team;
});

或者，如果您不想创建新对象：

let players = [ { name: 'a' }, { name: 'b' }, { name: 'c' } ];
let teams = [ { name: '1' }, { name: '2' }, { name: '3' } ];

teams.forEach( team => {
  let index = Math.floor(Math.random() * players.length);

  team.player = players[index];

  players.splice(index, 1);
});

或者如果您只想要玩家的名字：

let players = [ { name: 'a' }, { name: 'b' }, { name: 'c' } ];
let teams = [ { name: '1' }, { name: '2' }, { name: '3' } ];

teams.forEach( team => {
  let index = Math.floor(Math.random() * players.length);

  team.playerName = players[index].name;

  players.splice(index, 1);
});