day6-javascript-dates.js

/*
Objective
In this challenge, we learn about JavaScript Dates. Check out the attached tutorial for more details.

Task
Given a date string, dateString, in the format MM/DD/YYYY, find and return the day name for that date. Each day name must be one of the following strings: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, or Saturday. For example, the day name for the date 12/07/2016 is Wednesday.

Input Format
- Locked stub code in the editor reads the following input from stdin:
- The first line contains an integer, d, denoting the number of dates to check.
- Each line i of the d subsequent lines contains a date in MM/DD/YYYY format; each date denotes some dateString that is passed to the function.

Constraints
It is guaranteed that the input only consists of valid dates.

Output Format
The function must return a string denoting the day of the week corresponding to the date denoted by dateString.
*/

function getDayName(dateString) {
    let dayNames = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
    let date = new Date(dateString);

    return dayNames[date.getDay()];
}