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id, title, challengeType, dashedName
| id | title | challengeType | dashedName |
|---|---|---|---|
| 68ee9e3066cfd4eb2328e8a7 | Challenge 88: Weekday Finder | 28 | challenge-88 |
--description--
Given a string date in the format YYYY-MM-DD, return the day of the week.
Valid return days are:
"Sunday""Monday""Tuesday""Wednesday""Thursday""Friday""Saturday"
Be sure to ignore time zones.
--hints--
getWeekday("2025-11-06") should return Thursday.
assert.equal(getWeekday("2025-11-06"), "Thursday");
getWeekday("1999-12-31") should return Friday.
assert.equal(getWeekday("1999-12-31"), "Friday");
getWeekday("1111-11-11") should return Saturday.
assert.equal(getWeekday("1111-11-11"), "Saturday");
getWeekday("2112-12-21") should return Wednesday.
assert.equal(getWeekday("2112-12-21"), "Wednesday");
getWeekday("2345-10-01") should return Monday.
assert.equal(getWeekday("2345-10-01"), "Monday");
--seed--
--seed-contents--
function getWeekday(dateString) {
return dateString;
}
--solutions--
function getWeekday(dateString) {
const days = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
const [year, month, day] = dateString.split("-").map(Number);
const date = new Date(Date.UTC(year, month - 1, day));
return days[date.getUTCDay()];
}