37 lines
1.1 KiB
TypeScript
37 lines
1.1 KiB
TypeScript
import type { ContextOptions, DateArg } from "./types.js";
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/**
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* The {@link addYears} function options.
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*/
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export interface AddYearsOptions<DateType extends Date = Date>
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extends ContextOptions<DateType> {}
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/**
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* @name addYears
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* @category Year Helpers
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* @summary Add the specified number of years to the given date.
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*
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* @description
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* Add the specified number of years to the given date.
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*
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* @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
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* @typeParam ResultDate - The result `Date` type.
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*
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* @param date - The date to be changed
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* @param amount - The amount of years to be added.
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* @param options - The options
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*
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* @returns The new date with the years added
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*
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* @example
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* // Add 5 years to 1 September 2014:
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* const result = addYears(new Date(2014, 8, 1), 5)
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* //=> Sun Sep 01 2019 00:00:00
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*/
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export declare function addYears<
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DateType extends Date,
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ResultDate extends Date = DateType,
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>(
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date: DateArg<DateType>,
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amount: number,
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options?: AddYearsOptions<ResultDate> | undefined,
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): ResultDate;
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