sort（）を使わずにオブジェクトの配列の中で最高の値を得るには

-4

私はタスクを実行するために必要なオブジェクトの配列を持っています。sort（）を使わずにオブジェクトの配列の中で最高の値を得るには

sort()メソッドを使用しないと、トランプに投票した人とHillaryに投票した人に基づいて配列内のオブジェクトをソートする必要があります。

さらに、私はトランプのために最も多く投票した5州を見つけ、Hillaryにとって最も投票した5州を見つけ出す必要があります。ここで

は配列です：

var states = [{ 
    stateName: "Delaware", 
    votesForHillary: 14, 
    votesForTrump: 123, 
    population: 925749 
}, { 
    stateName: "Pennsylvania", 
    votesForHillary: 240, 
    votesForTrump: 1, 
    population: 12773801 
}, { 
    stateName: "New Jersey", 
    votesForHillary: 124, 
    votesForTrump: 15, 
    population: 8899339 
}, { 
    stateName: "Georgia", 
    votesForHillary: 12, 
    votesForTrump: 353, 
    population: 9992167 
}, { 
    stateName: "Connecticut", 
    votesForHillary: 23, 
    votesForTrump: 135, 
    population: 3596080 
}, { 
    stateName: "Massachusetts", 
    votesForHillary: 50, 
    votesForTrump: 53, 
    population: 6692824 
}, { 
    stateName: "Maryland", 
    votesForHillary: 424, 
    votesForTrump: 23, 
    population: 600000 
}, { 
    stateName: "South Carolina", 
    votesForHillary: 0, 
    votesForTrump: 1, 
    population: 4774839 
}, { 
    stateName: "New Hampshire", 
    votesForHillary: 34, 
    votesForTrump: 14, 
    population: 1323459 
}, { 
    stateName: "Virginia", 
    votesForHillary: 233, 
    votesForTrump: 153, 
    population: 8260405 
}, { 
    stateName: "New York", 
    votesForHillary: 253, 
    votesForTrump: 15, 
    population: 19651127 
}, { 
    stateName: "North Carolina", 
    votesForHillary: 5, 
    votesForTrump: 404, 
    population: 600000 
}, { 
    stateName: "Rhode Island", 
    votesForHillary: 4, 
    votesForTrump: 6, 
    population: 1051511 
}, { 
    stateName: "Vermont", 
    votesForHillary: 23, 
    votesForTrump: 54, 
    population: 626630 
}, { 
    stateName: "Kentucky", 
    votesForHillary: 46, 
    votesForTrump: 647, 
    population: 4395295 
}, { 
    stateName: "Tennessee", 
    votesForHillary: 44, 
    votesForTrump: 600, 
    population: 6495978 
}, { 
    stateName: "Ohio", 
    votesForHillary: 35, 
    votesForTrump: 45, 
    population: 11570808 
}, { 
    stateName: "Louisiana", 
    votesForHillary: 65, 
    votesForTrump: 56, 
    population: 4625470 
}, { 
    stateName: "Indiana", 
    votesForHillary: 21, 
    votesForTrump: 12, 
    population: 6570902 
}, { 
    stateName: "Mississippi", 
    votesForHillary: 340, 
    votesForTrump: 151, 
    population: 2991207 
}, { 
    stateName: "Illinois", 
    votesForHillary: 114, 
    votesForTrump: 53, 
    population: 12882135 
}, { 
    stateName: "Alabama", 
    votesForHillary: 35, 
    votesForTrump: 1351, 
    population: 4833722 
}, { 
    stateName: "Maine", 
    votesForHillary: 1, 
    votesForTrump: 2, 
    population: 1328302 
}, { 
    stateName: "Missouri", 
    votesForHillary: 240, 
    votesForTrump: 15, 
    population: 6044171 
}, { 
    stateName: "Arkansas", 
    votesForHillary: 53, 
    votesForTrump: 153, 
    population: 2959373 
}, { 
    stateName: "Michigan", 
    votesForHillary: 35, 
    votesForTrump: 647, 
    population: 600000 
}, { 
    stateName: "Florida", 
    votesForHillary: 46, 
    votesForTrump: 474, 
    population: 19552860 
}, { 
    stateName: "Texas", 
    votesForHillary: 0, 
    votesForTrump: 0, 
    population: 26448193 
}, { 
    stateName: "Iowa", 
    votesForHillary: 436, 
    votesForTrump: 123, 
    population: 3090416 
}, ];

、ここでは、私は、ソート（）メソッドでそれをやった方法です。

states.sort(function (a, b) { 
 
    return b.votesForTrump - a.votesForTrump; 
 
});

それは私が理解しようとしている課題です宿題ではありません。

出典

2017-11-27 shosh.solo

それには理由がありますか？ –

これまでに何を試しましたか？宿題は既に議論の的になっている話題ですが、あなたの側からの試みは一切ありません。ほとんどの場合、回答は得られません。 –

サポート方法を使用しない理由は疑問であり、この質問は宿題などのように聞こえます。その場合、 'sort（）'やそれに類するメソッドを使用せずに、すべてのオブジェクトをループしてmin、max値を記録する必要があります。そこにたくさんの例があります（単純なgoogleなど...）ループする方法。それらのうちの1つを試してください。ここにコードを掲載する際に問題がある場合は、見てください。 – Nope

次回は、援助を求める前に自分の努力をいくつか示してください。

問題の場合、map,filter、Math.maxの組み合わせが必要です。

var states = [{ 
 
    stateName: "Delaware", 
 
    votesForHillary: 14, 
 
    votesForTrump: 123, 
 
    population: 925749 
 
}, { 
 
    stateName: "Pennsylvania", 
 
    votesForHillary: 240, 
 
    votesForTrump: 1, 
 
    population: 12773801 
 
}, { 
 
    stateName: "New Jersey", 
 
    votesForHillary: 124, 
 
    votesForTrump: 15, 
 
    population: 8899339 
 
}, { 
 
    stateName: "Georgia", 
 
    votesForHillary: 12, 
 
    votesForTrump: 353, 
 
    population: 9992167 
 
}, { 
 
    stateName: "Connecticut", 
 
    votesForHillary: 23, 
 
    votesForTrump: 135, 
 
    population: 3596080 
 
}, { 
 
    stateName: "Massachusetts", 
 
    votesForHillary: 50, 
 
    votesForTrump: 53, 
 
    population: 6692824 
 
}, { 
 
    stateName: "Maryland", 
 
    votesForHillary: 424, 
 
    votesForTrump: 23, 
 
    population: 600000 
 
}, { 
 
    stateName: "South Carolina", 
 
    votesForHillary: 0, 
 
    votesForTrump: 1, 
 
    population: 4774839 
 
}, { 
 
    stateName: "New Hampshire", 
 
    votesForHillary: 34, 
 
    votesForTrump: 14, 
 
    population: 1323459 
 
}, { 
 
    stateName: "Virginia", 
 
    votesForHillary: 233, 
 
    votesForTrump: 153, 
 
    population: 8260405 
 
}, { 
 
    stateName: "New York", 
 
    votesForHillary: 253, 
 
    votesForTrump: 15, 
 
    population: 19651127 
 
}, { 
 
    stateName: "North Carolina", 
 
    votesForHillary: 5, 
 
    votesForTrump: 404, 
 
    population: 600000 
 
}, { 
 
    stateName: "Rhode Island", 
 
    votesForHillary: 4, 
 
    votesForTrump: 6, 
 
    population: 1051511 
 
}, { 
 
    stateName: "Vermont", 
 
    votesForHillary: 23, 
 
    votesForTrump: 54, 
 
    population: 626630 
 
}, { 
 
    stateName: "Kentucky", 
 
    votesForHillary: 46, 
 
    votesForTrump: 647, 
 
    population: 4395295 
 
}, { 
 
    stateName: "Tennessee", 
 
    votesForHillary: 44, 
 
    votesForTrump: 600, 
 
    population: 6495978 
 
}, { 
 
    stateName: "Ohio", 
 
    votesForHillary: 35, 
 
    votesForTrump: 45, 
 
    population: 11570808 
 
}, { 
 
    stateName: "Louisiana", 
 
    votesForHillary: 65, 
 
    votesForTrump: 56, 
 
    population: 4625470 
 
}, { 
 
    stateName: "Indiana", 
 
    votesForHillary: 21, 
 
    votesForTrump: 12, 
 
    population: 6570902 
 
}, { 
 
    stateName: "Mississippi", 
 
    votesForHillary: 340, 
 
    votesForTrump: 151, 
 
    population: 2991207 
 
}, { 
 
    stateName: "Illinois", 
 
    votesForHillary: 114, 
 
    votesForTrump: 53, 
 
    population: 12882135 
 
}, { 
 
    stateName: "Alabama", 
 
    votesForHillary: 35, 
 
    votesForTrump: 1351, 
 
    population: 4833722 
 
}, { 
 
    stateName: "Maine", 
 
    votesForHillary: 1, 
 
    votesForTrump: 2, 
 
    population: 1328302 
 
}, { 
 
    stateName: "Missouri", 
 
    votesForHillary: 240, 
 
    votesForTrump: 15, 
 
    population: 6044171 
 
}, { 
 
    stateName: "Arkansas", 
 
    votesForHillary: 53, 
 
    votesForTrump: 153, 
 
    population: 2959373 
 
}, { 
 
    stateName: "Michigan", 
 
    votesForHillary: 35, 
 
    votesForTrump: 647, 
 
    population: 600000 
 
}, { 
 
    stateName: "Florida", 
 
    votesForHillary: 46, 
 
    votesForTrump: 474, 
 
    population: 19552860 
 
}, { 
 
    stateName: "Texas ", 
 
    votesForHillary: 0, 
 
    votesForTrump: 0, 
 
    population: 26448193 
 
}, { 
 
    stateName: "Iowa", 
 
    votesForHillary: 436, 
 
    votesForTrump: 123, 
 
    population: 3090416 
 
}, ]; 
 

 
let trumpStates = states.filter((data) => {return data["votesForTrump"] > data["votesForHillary"]}); 
 
let hillaryStates = states.filter((data) => {return data["votesForTrump"] < data["votesForHillary"]}); 
 

 
let allTrumpVotes = []; 
 
let allHillaryVotes = []; 
 

 
trumpStates.map((data) => allTrumpVotes.push(data["votesForTrump"])); 
 

 
hillaryStates.map((data) => allHillaryVotes.push(data["votesForHillary"])); 
 

 
let maxTrumpVotes = Math.max(...allTrumpVotes); 
 
let maxHillaryVotes = Math.max(...allHillaryVotes); 
 
console.log(allHillaryVotes) 
 
let maxTrumpState = trumpStates.filter((data) => { 
 
    if(data["votesForTrump"] == maxTrumpVotes) return data; 
 
    }); 
 
    
 
let maxHillaryState = hillaryStates.filter((data) => { 
 
    if(data["votesForHillary"] == maxHillaryVotes) return data; 
 
    }); 
 
console.log(maxHillaryState,maxTrumpState)

ものをソートするに役立ちますし、また、あなたが最も多くの票を得るために同じソートを行うことができます機能以下

出典

2017-11-27 11:40:16

はヒラリーのために述べています。

function sorting() { 
    console.log("Lenght : " + states.length); 

    let TopVotedToTrump: typeof states; 
    let TopVotedToHillary: typeof states; 
    TopVotedToTrump.push(states[0]); 
    for (let i: number = 0; i < states.length-1 ; i++) { 
     for (let j: number = i + 1; j < states.length; j++) { 
      if ((states[i].votesForTrump < states[j].votesForTrump) || (states[i].votesForTrump == states[j].votesForTrump && states[i].votesForHillary < states[j].votesForHillary)) 
      { 
       console.log(states[i].votesForTrump + " swapped with " + states[j].votesForTrump); 
       let temp = states[i]; 
       states[i] = states[j] 
       states[j] = temp 
      } 
      if ((states[i].votesForHillary < states[j].votesForHillary)) { 
       let temp = states[i]; 
       states[i] = states[j] 
       states[j] = temp 
      } 
     } 

     if (TopVotedToTrump.indexOf(states[i]) != -1) { 
      TopVotedToTrump.push(states[i]); 
     } 
    } 

    //for (let i of states) { 
    // console.log("{" + " State: " + i.stateName + " Population: " + i.population + " Votes For Hillary: " + i.votesForHillary + " Votes For Trump: "+ i.votesForTrump + "}"); 
    //} 
    //console.log("Result : " + JSON.parse(states.toString())); 
}

出典

2017-11-27 13:37:04

sort（）を使わずにオブジェクトの配列の中で最高の値を得るには

答えて

関連する問題