如何从另一个弹出窗口推入一个数组？

Question

我正在编写一个模拟孩子的足球，棒球，棒球的程序；任何团队比赛。阵列中有10个孩子。每个孩子都有一个随机的幂数。您知道您总是首先选择最好的孩子，然后依此类推。因此，我的脚本为孩子的能力生成了一个随机数。然后对数组进行排序，以确定两个孩子的最高能力，并将它们放在数组的末尾，然后将它们弹出到两个新的数组中，称为teamOne和teamTwo。然后他们扔硬币，看谁先选，差不多是通过if-else循环，在if中嵌套了一会儿。

我的排序工作正常，两个团队的队长弹出两个新的团队数组也是如此。我抛硬币很有效，但后来我茫然。因此，我需要针对此问题的指导或指导材料建议？

这是我的代码，谢谢。

// generate a random number
let getRandNum = function (start, range) {
  let getRand = (Math.random() * range) + start;
  while (getRand > range) {
    getRand = (Math.random() * range) + start;
  };
  return getRand;
};

// array of 10 kids
var Kids = [{
    name: "Bobby",
    random: getRandNum(1, 10)
  },
  {
    name: "Frankie",
    random: getRandNum(1, 10)
  },
  {
    name: "Juan",
    random: getRandNum(1, 10)
  },
  {
    name: "Sid",
    random: getRandNum(1, 10)
  },
  {
    name: "Ellie",
    random: getRandNum(1, 10)
  },
  {
    name: "Harry",
    random: getRandNum(1, 10)
  },
  {
    name: "Chester",
    random: getRandNum(1, 10)
  },
  {
    name: "Lucio",
    random: getRandNum(1, 10)
  },
  {
    name: "Nancy",
    random: getRandNum(1, 10)
  },
  {
    name: "Kim",
    random: getRandNum(1, 10)
  }
];

// sort based on random number with thanks to:
//  https://www.sitepoint.com/sort-an-array-of-objects-in-javascript

function compareValues(key, order = 'asc') {
  return function innerSort(a, b) {
    if (!a.hasOwnProperty(key) || !b.hasOwnProperty(key)) {
      // property doesn't exist on either object
      return 0;
    }

    const varA = (typeof a[key] === 'string') ?
      a[key].toUpperCase() : a[key];
    const varB = (typeof b[key] === 'string') ?
      b[key].toUpperCase() : b[key];

    let comparison = 0;
    if (varA > varB) {
      comparison = 1;
    } else if (varA < varB) {
      comparison = -1;
    }
    return (
      (order === 'desc') ? (comparison * -1) : comparison
    );
  };
}

console.log(Kids.sort(compareValues('random', )));

const teamOne = Kids.pop();
const teamTwo = Kids.pop();

console.log(teamOne);
console.log(teamTwo);
console.log(Kids);

let coinToss = "Heads"

if (Math.floor((Math.random() * 2) + 1) == 2) {
  coinToss = "Tails";
};

console.log(coinToss);

if (coinToss = "Heads") {
  let x = 4;
  while (x > 0) {
    teamOne.push([Kids.pop()]);
    teamTwo.push([Kids.pop()]);
    x -= x;
  };
} else {
  let x = 4;
  while (x > 0) {
    teamTwo.push([Kids.pop()]);
    teamOne.push([Kids.pop()]);
    x -= x;
  };
  console.log("_____________");
  console.log(coinSide);
  console.log("_____________");
  console.log(teamOne.name);
  console.log("_____________");
  console.log(teamTwo.name);
};

Answer 1

问题是您没有将teamOne和teamTwo视为数组，因此不能使用“ push”。最重要的是，Kids数组对象具有两个值-“ name”和“ random”-因此，使用“ push”将添加一个新的kid作为对象。

因此，首先，您需要将teamOne和teamTwo定义为数组而不是字符串。其次，您需要从Kids对象中提取“ name”属性（假设您仅出于排序目的使用“ random”，而不再需要它的值）。最后，您还没有为每个团队分配名称，如果您为每个团队使用一个数组，现在就可以这样做。

尝试类似的东西：

// generate a random number
let getRandNum = function (start, range) {
  let getRand = (Math.random() * range) + start;
  while (getRand > range) {
    getRand = (Math.random() * range) + start;
  };
  return getRand;
};

// array of 10 kids
var Kids = [{
    name: "Bobby",
    random: getRandNum(1, 10)
  },
  {
    name: "Frankie",
    random: getRandNum(1, 10)
  },
  {
    name: "Juan",
    random: getRandNum(1, 10)
  },
  {
    name: "Sid",
    random: getRandNum(1, 10)
  },
  {
    name: "Ellie",
    random: getRandNum(1, 10)
  },
  {
    name: "Harry",
    random: getRandNum(1, 10)
  },
  {
    name: "Chester",
    random: getRandNum(1, 10)
  },
  {
    name: "Lucio",
    random: getRandNum(1, 10)
  },
  {
    name: "Nancy",
    random: getRandNum(1, 10)
  },
  {
    name: "Kim",
    random: getRandNum(1, 10)
  }
];

// sort based on random number with thanks to:
//  https://www.sitepoint.com/sort-an-array-of-objects-in-javascript

function compareValues(key, order = 'asc') {
  return function innerSort(a, b) {
    if (!a.hasOwnProperty(key) || !b.hasOwnProperty(key)) {
      // property doesn't exist on either object
      return 0;
    }

    const varA = (typeof a[key] === 'string') ?
      a[key].toUpperCase() : a[key];
    const varB = (typeof b[key] === 'string') ?
      b[key].toUpperCase() : b[key];

    let comparison = 0;
    if (varA > varB) {
      comparison = 1;
    } else if (varA < varB) {
      comparison = -1;
    }
    return (
      (order === 'desc') ? (comparison * -1) : comparison
    );
  };
}

console.log(Kids.sort(compareValues('random', )));

let teamOne = [];
let teamTwo = [];

let kidName1 = {};
let kidName2 = {};

kidName1 = Kids.pop();
teamOne[0] = kidName1.name;
kidName2 = Kids.pop();
teamTwo[0] = kidName2.name;
teamOne.name = "Team 1";
teamTwo.name = "Team 2";

console.log(teamOne);
console.log(teamTwo);
console.log(Kids);

let coinToss = "Heads"

if (Math.floor((Math.random() * 2) + 1) == 2) {
  coinToss = "Tails";
};

console.log(coinToss);

for (let i = 0; i < 4; i++) {
    kidName1 = Kids.pop();
    kidName2 = Kids.pop();
    if (coinToss == "Heads") {
        teamOne.push(kidName1.name);
        teamTwo.push(kidName2.name);
    } else {
        teamOne.push(kidName2.name);
        teamTwo.push(kidName1.name);
    }
};
console.log("_____________");
console.log(coinToss);
console.log("_____________");
console.log(teamOne.name);
console.log("_____________");
console.log(teamTwo.name);
console.log("_____________");
console.log(teamOne.toString());
console.log("_____________");
console.log(teamTwo.toString());