fortitude

Finished
1//
2// This is only a SKELETON file for the 'Meetup' exercise. It's been provided as a
3// convenience to get you started writing code faster.
4//
1const weekdays = {
2 Sunday: 0,
3 Monday: 1,
4 Tuesday: 2,
5 Wednesday: 3,
6 Thursday: 4,
7 Friday: 5,
8 Saturday: 6
9};
10
11const weekDescriptors = {
12 first: 1,
13 second: 2,
14 third: 3,
15 fourth: 4,
16 last: -1,
17 teenth: 0
18};
519
620/**
7 * @param {number} year
8 * @param {number} month
9 * @param {string} week
10 * @param {string} dayOfWeek
11 * @returns {Date}
21 * Calculates the date of a meetup based on year, month, week descriptor, and day of week.
22 * @param {number} year - The year of the meetup
23 * @param {number} month - The month of the meetup (1-12)
24 * @param {string} week - The week descriptor ('first', 'second', 'third', 'fourth', 'last', 'teenth')
25 * @param {string} dayOfWeek - The day of week ('Sunday', 'Monday', etc.)
26 * @returns {Date} - The calculated date of the meetup
1227 */
1328export const meetup = (year, month, week, dayOfWeek) => {
14 throw new Error('Remove this line and implement the function');
29 // Edge Case: Invalid month input
30 if (month < 1 || month > 12) {
31 throw new Error('Invalid month');
32 }
33
34 // Edge Case: Invalid year input
35 if (year < 1) {
36 throw new Error('Invalid year');
37 }
38
39 // Edge Case: Invalid week descriptor
40 if (!weekDescriptors.hasOwnProperty(week)) {
41 throw new Error('Invalid week descriptor');
42 }
43
44 // Edge Case: Invalid day of week
45 if (!weekdays.hasOwnProperty(dayOfWeek)) {
46 throw new Error('Invalid day of week');
47 }
48
49 const targetDay = weekdays[dayOfWeek];
50
51 // For 'teenth' week descriptor
52 if (week === 'teenth') {
53 // Edge Case: Teenth days are from 13 to 19
54 for (let day = 13; day <= 19; day++) {
55 const date = new Date(year, month - 1, day);
56 if (date.getDay() === targetDay) {
57 return date;
58 }
59 }
60 }
61
62 // For 'last' week descriptor
63 else if (week === 'last') {
64 // Get the last day of the month
65 const lastDay = new Date(year, month, 0).getDate();
66
67 // Edge Case: Iterate backwards to find the last occurrence of the target day
68 for (let day = lastDay; day >= 1; day--) {
69 const date = new Date(year, month - 1, day);
70 if (date.getDay() === targetDay) {
71 return date;
72 }
73 }
74 }
75
76 // For first, second, third, fourth week descriptors
77 else {
78 const weekNumber = weekDescriptors[week];
79 let occurrenceCount = 0;
80
81 // Get the number of days in the month
82 const daysInMonth = new Date(year, month, 0).getDate();
83
84 // Edge Case: Iterate through all days of the month to find the nth occurrence
85 for (let day = 1; day <= daysInMonth; day++) {
86 const date = new Date(year, month - 1, day);
87 if (date.getDay() === targetDay) {
88 occurrenceCount++;
89 if (occurrenceCount === weekNumber) {
90 return date;
91 }
92 }
93 }
94
95 // Edge Case: Requested occurrence does not exist in the month
96 throw new Error('Requested date does not exist in the month');
97 }
98
99 // Edge Case: Should not reach here under normal circumstances
100 throw new Error('Could not determine the meetup date');
15101};
102
103// Handled Edge Cases: Invalid month input, Invalid year input, Invalid week descriptor, Invalid day of week, Teenth days range, Last occurrence search, Nth occurrence search, Requested occurrence does not exist, Unexpected execution path
Test NameStatus
monteenth of May 2013
Pass
monteenth of August 2013
Pass
monteenth of September 2013
Pass
tuesteenth of March 2013
Pass
tuesteenth of April 2013
Pass
tuesteenth of August 2013
Pass
wednesteenth of January 2013
Pass
wednesteenth of February 2013
Pass
wednesteenth of June 2013
Pass
thursteenth of May 2013
Pass
thursteenth of June 2013
Pass
thursteenth of September 2013
Pass
friteenth of April 2013
Pass
friteenth of August 2013
Pass
friteenth of September 2013
Pass
saturteenth of February 2013
Pass
saturteenth of April 2013
Pass
saturteenth of October 2013
Pass
sunteenth of May 2013
Pass
sunteenth of June 2013
Pass
sunteenth of October 2013
Pass
first Monday of March 2013
Pass
first Monday of April 2013
Pass
first Tuesday of May 2013
Pass
first Tuesday of June 2013
Pass
first Wednesday of July 2013
Pass
first Wednesday of August 2013
Pass
first Thursday of September 2013
Pass
first Thursday of October 2013
Pass
first Friday of November 2013
Pass
first Friday of December 2013
Pass
first Saturday of January 2013
Pass
first Saturday of February 2013
Pass
first Sunday of March 2013
Pass
first Sunday of April 2013
Pass
second Monday of March 2013
Pass
second Monday of April 2013
Pass
second Tuesday of May 2013
Pass
second Tuesday of June 2013
Pass
second Wednesday of July 2013
Pass
second Wednesday of August 2013
Pass
second Thursday of September 2013
Pass
second Thursday of October 2013
Pass
second Friday of November 2013
Pass
second Friday of December 2013
Pass
second Saturday of January 2013
Pass
second Saturday of February 2013
Pass
second Sunday of March 2013
Pass
second Sunday of April 2013
Pass
third Monday of March 2013
Pass
third Monday of April 2013
Pass
third Tuesday of May 2013
Pass
third Tuesday of June 2013
Pass
third Wednesday of July 2013
Pass
third Wednesday of August 2013
Pass
third Thursday of September 2013
Pass
third Thursday of October 2013
Pass
third Friday of November 2013
Pass
third Friday of December 2013
Pass
third Saturday of January 2013
Pass
third Saturday of February 2013
Pass
third Sunday of March 2013
Pass
third Sunday of April 2013
Pass
fourth Monday of March 2013
Pass
fourth Monday of April 2013
Pass
fourth Tuesday of May 2013
Pass
fourth Tuesday of June 2013
Pass
fourth Wednesday of July 2013
Pass
fourth Wednesday of August 2013
Pass
fourth Thursday of September 2013
Pass
fourth Thursday of October 2013
Pass
fourth Friday of November 2013
Pass
fourth Friday of December 2013
Pass
fourth Saturday of January 2013
Pass
fourth Saturday of February 2013
Pass
fourth Sunday of March 2013
Pass
fourth Sunday of April 2013
Pass
last Monday of March 2013
Pass
last Monday of April 2013
Pass
last Tuesday of May 2013
Pass
last Tuesday of June 2013
Pass
last Wednesday of July 2013
Pass
last Wednesday of August 2013
Pass
last Thursday of September 2013
Pass
last Thursday of October 2013
Pass
last Friday of November 2013
Pass
last Friday of December 2013
Pass
last Saturday of January 2013
Pass
last Saturday of February 2013
Pass
last Sunday of March 2013
Pass
last Sunday of April 2013
Pass
last Wednesday of February 2012
Pass
last Wednesday of December 2014
Pass
last Sunday of February 2015
Pass
first Friday of December 2012
Pass

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