27 lines
700 B
TypeScript
27 lines
700 B
TypeScript
export type Weekday = 'Mon' | 'Tue' | 'Wed' | 'Thu' | 'Fri' | 'Sat' | 'Sun';
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import { RacingDomainInvariantError } from '../errors/RacingDomainError';
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export const ALL_WEEKDAYS: Weekday[] = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'];
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export function weekdayToIndex(day: Weekday): number {
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switch (day) {
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case 'Mon':
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return 1;
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case 'Tue':
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return 2;
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case 'Wed':
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return 3;
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case 'Thu':
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return 4;
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case 'Fri':
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return 5;
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case 'Sat':
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return 6;
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case 'Sun':
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return 7;
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default:
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// This should be unreachable because Weekday is a closed union.
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throw new RacingDomainInvariantError(`Unknown weekday: ${day}`);
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}
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} |