如何返回對象而不是控制檯日誌值

Question

我編寫了一個JavaScript函數來查找奇數整數，負整數，平均值和中值。

該代碼正在完成我想要的所有內容，但是，我想知道是否可以重寫它以使函數返回對象而不僅僅是控制檯日誌值。我還包括一個鏈接到我的JS斌（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

我不知道如果我得到你的問題的權利，但你爲什麼不以你的方法開始創建一個對象，然後，一旦你計算出它們寫在對象中的值？

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]));