将数据从函数传递到日期函数（设日期 = 新日期 ("Values")）

Question

我试图解决这个 Reddit 每日编程挑战，但我就是无法越过这个障碍。挑战的任务是：

该程序应采用三个参数。第一个是日，第二个是月，第三个是年。然后，您的程序应计算该日期将落在星期几。

所以我已经想出了一个解决 Weekday 问题的函数。任务是创建一个带有 3 个参数的程序。所以我需要将一些值传递到新的 Date 变量中，如下所示：("December 25, 1987")。

我创建了一个带有 3 个参数的函数：month、day、year。我还想出了如何以正确的格式存储这些值，以便将其与新的 Date 变量一起使用。

唯一的问题是，我不知道如何将 findOutDate(month, day, year) 函数的输出传递给 new Date() 变量。

这让我发疯。请帮我。另外，也许我把挑战弄错了，有更简单的方法来解决它。

// The program should take three arguments. The first will be a day, the second will be month, 
// and the third will be year. 
// Then, your program should compute the day of the week that date will fall on.

/**
 * Function takes in a Date object and returns the day of the week in a text format.
 */
function getWeekDay(date) {
  // Create an array containing each day, starting with Sunday.
  const weekdays = [
    "Sunday", 
    "Monday", 
    "Tuesday", 
    "Wednesday", 
    "Thursday", 
    "Friday",
    "Saturday"
  ];

  // Use the getDay() method to get the day.
  const day = date.getDay();

  // Return the element that corresponds to that index.
  return weekdays[day];
}

// The function that takes 3 arguments and stores them in a variable
function findOutDate(month, day, year) {
  // console.log(month + " " + day + ", " + year);
  let date = month + " " + day + ", " + year
}

// Finding out what day a specific date fell on.
let date = new Date('December 25, 1987');
let weekDay = getWeekDay(date);
console.log('Christmas Day in 1987 fell on a ' + weekDay);

Answer 1

function findOutDate(month, day, year) {
    // console.log(month + " " + day + ", " + year);
    let date = month + " " + day + ", " + year
    return date //return the date string
}


//Finding out what day a specific date fell on.
let date = new Date(findOutDate()); //call the function returning the date string
let weekDay = getWeekDay(date);

希望对您有所帮助

将数据从函数传递到日期函数（设日期 = 新日期 ("Values")）

Passing data from a function to a Date function (let date = new Date ("Values"))

javascript

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