Javascript：尝试将项目从一个数组随机移动到另一个数组

Question

我一直被困了两个小时，试图从一个数组（玩家）中随机选择一个项目到另一个（team1）中。

我通过对拼接执行其他操作来使其工作，但是不幸的是，拼接本身会使用删除的项目创建一个数组，因此最终获得了一个带有数组的数组。

这是我到目前为止所得到的：

var players = ["P1", "P2", "P3", "P4"];

var team1 = [];
var team2 = [];

var select = Math.floor(Math.random() * players.length);
var tmp;

if (team1.length < 2) {
  tmp.push(players.splice(select, 1));
  team1.push(tmp.pop);
}

console.log(team1);
console.log(tmp);
console.log(players);

如果我做错了所有错，对不起，对于该网站还很陌生，我们感谢您的帮助。

Answer 1

您在您的情况下尝试这样

var players = ["P1", "P2", "P3", "P4"];

var team1 = [];
var team2 = [];
var temp = players.slice();

for(i=0; i<temp.length; i++){
     var select = Math.floor(Math.random() * temp.length);
     console.log(select);
     if (team1.length <= temp.length/2) {
        team1.push(temp[select]);
      }
      temp.splice(select, 1);
}
team2 = temp.slice();

console.log('team 1 ---',team1);
console.log('team 2 ---',team2);
console.log('players ---', players);

Answer 2

您只需在拼接并推入团队时从数组中选择第一个元素，

var players = ["P1", "P2", "P3", "P4", "P5", "P6", "P7", "P8"];

var team1 = [];
var team2 = [];

var tmp = [];
while (team1.length < 4) {
  tmp.push(players.splice(Math.floor(Math.random() * players.length - 1), 1)[0]);
  team1.push(tmp.pop());
}

while (team2.length < 4) {
  tmp.push(players.splice(Math.floor(Math.random() * players.length - 1), 1)[0]);
  team2.push(tmp.pop());
}

console.log(team1);
console.log(team2);
console.log(tmp);
console.log(players);