如何返回對象而不是控制台日志值

Question

我編寫了一個JavaScript函數來查找奇數整數，負整數數，平均值和中位數。

該代碼完成了我想要的一切，但是，我想知道是否可以重寫它以獲取返回對象的功能，而不僅僅是控制台日志值。 我還包括了指向我的JS Bin的鏈接（ https://jsbin.com/digagozuru/edit?html,css,js,console,output ）

任何意見或建議，將不勝感激！ 謝謝。

  var arrayAnalyzer = function(myArray) {

    var odds = 0;
    var negatives = 0;
    var avg;
    var median;

    for (var i = 0; i < myArray.length; i++) {
      if (myArray[i] % 2 !== 0) {
        odds += 1;
      }
      if (myArray[i] < 0) {
        negatives += 1;
      }
    }

    console.log("There are " + odds + " odd numbers.");
    console.log("There are " + negatives + " negative numbers.");

    var sum = myArray.reduce(function(previousValue, currentValue) {
      return previousValue + currentValue;
    });

    avg = sum / myArray.length;
    console.log("The average is " + avg.toFixed(2));

    var orderedArray = myArray.sort(function(a, b) {
      return a - b;
    });

    if (orderedArray.length % 2 === 0) {
      var position1 = orderedArray.length / 2;
      var position2 = position1 - 1;
      median = (orderedArray[position1] + orderedArray[position2]) / 2;
    } else {
      var position = Math.floor(orderedArray.length / 2);
      median = orderedArray[position];
    }

    console.log("The median is " + median);
  };

  arrayAnalyzer([7, -3, 0, 12, 44, -5, 3]);

Answer 1

var arrayAnalyzer = function(myArray) {

  var odds = 0;
  var negatives = 0;
  var avg;
  var median;

  for (var i = 0; i < myArray.length; i++) {
    if (myArray[i] % 2 !== 0) {
      odds += 1;
    }
    if (myArray[i] < 0) {
      negatives += 1;
    }
  }

  console.log("There are " + odds + " odd numbers.");
  console.log("There are " + negatives + " negative numbers.");

  var sum = myArray.reduce(function(previousValue, currentValue) {
    return previousValue + currentValue;
  });

  avg = sum / myArray.length;
  console.log("The average is " + avg.toFixed(2));

  var orderedArray = myArray.sort(function(a, b) {
    return a - b;
  });

  if (orderedArray.length % 2 === 0) {
    var position1 = orderedArray.length / 2;
    var position2 = position1 - 1;
    median = (orderedArray[position1] + orderedArray[position2]) / 2;
  } else {
    var position = Math.floor(orderedArray.length / 2);
    median = orderedArray[position];
  }

  console.log("The median is " + median);
  // Returns an object with named attributes
  return {
    odds:odds,
    negatives:negatives,
    avg:avg,
    median:median
  };
};

var myArray = arrayAnalyzer([7, -3, 0, 12, 44, -5, 3]);
console.log("Odds: " + myArray.odds +
  "\nNegatives: " + myArray.negatives +
  "\nAverage:" + myArray.avg +
  "\nMedian: " + myArray.median);

Answer 2

我不確定是否能正確回答您的問題，但是為什么不在方法開始時創建一個對象，然后在計算出值后立即將其寫入對象？

 var arrayAnalyzer = function(myArray) { var odds = 0; var negatives = 0; var avg; var median; var result = {}; for (var i = 0; i < myArray.length; i++) { if (myArray[i] % 2 !== 0) { odds += 1; } if (myArray[i] < 0) { negatives += 1; } } result.negatives = negatives; result.odds = odds; var sum = myArray.reduce(function(previousValue, currentValue) { return previousValue + currentValue; }); avg = sum / myArray.length; result.avg = avg; var orderedArray = myArray.sort(function(a, b) { return a - b; }); if (orderedArray.length % 2 === 0) { var position1 = orderedArray.length / 2; var position2 = position1 - 1; median = (orderedArray[position1] + orderedArray[position2]) / 2; } else { var position = Math.floor(orderedArray.length / 2); median = orderedArray[position]; } result.median = median; return result; }; console.log(arrayAnalyzer([7, -3, 0, 12, 44, -5, 3]));