JavaScript：为什么array.push（）追加两个对象而不是一个

Question

我对JS还是很陌生，我的代码确实有一个我不明白的问题：我尝试将文本值对添加到数组中，并且基本上可以使用，但是不是添加单个对，而是添加两个对。 下面是代码片段，问题出在后一个if语句中。 我已在代码段中添加了评论，以解释我在做什么。

 players.addResult = function(result){

 //result-argument contains results of games, like: Object {0: "4-2", 1: "5-3", 2: "7-1"}


    var playerList = [];        
    var standingArray = [];

    resultLen = Object.keys(result).length;

    //loop iterates thru results by index
    for (var x=0; x < resultLen; x++) {
        var newResult = result[x];
        newResult = newResult.split("-");

        if (newResult[0] > newResult[1]) {

            //the next line retrieves the name of a winning player from another array
            playerVal = players.pairs[x].player1;
            playerVal = playerVal.text;
            console.log(playerVal); //Output of this: Bill
            value = playerList.indexOf(playerVal); // Checks if the player already exists on the standings, returns -1 if false.

            if (value === -1) {

          /*if the player gets his first points, his name and earned
          points are added on to the standingArray. And the next line of code is the
          interesting one, because I am expecting to have an array with
          index, name of the winner and points. Like this: 
          Object 0 name:"Bill" points:2. But  instead of that, there are two                 
          objects on the array, one for both players: 
          [Object]
           0: Object
             name:  "Bill"
             points: 2
             __proto__: Object
           1: Object
             name: "Greg"
             points: 2
             __proto__: Object
          length: 2
          __proto__: Array[0]*/

                standingArray.push({name: playerVal, points: 2})

                playerList.push(playerVal); //this is for keeping on track that player is now on the standingArray

                console.log(playerVal);
                console.log(playerList);
                console.log(standingArray);
            }
            else {
                console.log("else");
            }               
        console.log(playerList);
        console.log(standingArray);

所以问题是JS如何获得Greg的名字-我检查了playerVal-variable，它实际上只包含Bill的名字。 热烈欢迎任何帮助！

Answer 1

从console.log出现在控制台中的输出仍然有效。 它反映了在进行console.log调用之后传递给console.log的对象的更改。

您可能需要JSON.stringify传递给console.log或复制Array：

console.log(playerList.slice());
console.log(standingArray.slice());