getQuarterForDate
Signature
Section titled “Signature”getQuarterForDate(value: string): number | nullReturn the quarter of the year (1-4) for a given ISO date.
- Returns the quarter (1-4) containing the input date.
- Q1 = months 1-3, Q2 = months 4-6, Q3 = months 7-9, Q4 = months 10-12.
- Validates input using isValidDate.
Parameters
Section titled “Parameters”| Parameter | Type | Description |
|---|---|---|
value | string | ISO PlainDate string |
Returns
Section titled “Returns”number (1-4) or null for invalid input
Examples
Section titled “Examples”import { getQuarterForDate } from "@northguild/gmt/plain/calculate";
getQuarterForDate("2024-01-15") // 1