mary.my.id
small date utilities
initial commit
author
Mary
date
(Jan 21, 2025, 10:24 PM +0700)
commit
eeb8c8d3
eeb8c8d33fc184e33fe978717b1914028f8ea336
+265
+4
.vscode/settings.json
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.vscode/settings.json
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LICENSE
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LICENSE
···
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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deno.json
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deno.json
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{
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"name": "@mary/date-fns",
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"version": "0.1.0",
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"exports": "./lib/mod.ts",
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"fmt": {
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"useTabs": true,
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"indentWidth": 2,
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"lineWidth": 110,
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"semiColons": true,
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"singleQuote": true
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},
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"publish": {
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"include": ["lib/", "LICENSE", "README.md", "deno.json"]
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}
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}
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lib/mod.ts
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lib/mod.ts
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export type DayOfWeek = 0 | 1 | 2 | 3 | 4 | 5 | 6;
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export const getUnixMs = (date: Date): number => {
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return date.getTime();
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};
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export const getMilliseconds = (date: Date): number => {
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return date.getMilliseconds();
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};
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export const getSeconds = (date: Date): number => {
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return date.getSeconds();
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};
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export const getMinutes = (date: Date): number => {
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return date.getMinutes();
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};
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export const getHours = (date: Date): number => {
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return date.getHours();
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};
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export const getDayOfWeek = (date: Date): DayOfWeek => {
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return date.getDay() as DayOfWeek;
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};
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export const getDayOfMonth = (date: Date): number => {
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return date.getDate();
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};
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export const getMonth = (date: Date): number => {
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return date.getMonth();
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};
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export const getYear = (date: Date): number => {
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return date.getFullYear();
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};
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export const isDatetimeBefore = (date: Date, compare: Date): boolean => {
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return date !== compare && getUnixMs(date) < getUnixMs(compare);
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};
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export const isDatetimeAfter = (date: Date, compare: Date): boolean => {
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return date !== compare && getUnixMs(date) > getUnixMs(compare);
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};
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export const isDatetimeSame = (a: Date, b: Date): boolean => {
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return a === b || getUnixMs(a) === getUnixMs(b);
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};
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export const isDateSame = (a: Date, b: Date): boolean => {
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if (a === b) {
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return true;
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}
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return getDayOfMonth(a) === getDayOfMonth(b) && getMonth(a) === getMonth(b) && getYear(a) === getYear(b);
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};
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export const isMonthSame = (a: Date, b: Date): boolean => {
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if (a === b) {
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return true;
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}
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return getMonth(a) === getMonth(b) && getYear(a) === getYear(b);
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};
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export const isYearSame = (a: Date, b: Date): boolean => {
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if (a === b) {
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return true;
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}
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return getYear(a) === getYear(b);
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};
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export const min = (a: Date, b: Date): Date => {
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return isDatetimeBefore(a, b) ? a : b;
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};
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export const max = (a: Date, b: Date): Date => {
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return isDatetimeAfter(a, b) ? a : b;
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};
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export const clamp = (date: Date, min: Date | undefined, max: Date | undefined): Date => {
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if (min !== undefined && isDatetimeBefore(date, min)) {
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return min;
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}
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if (max !== undefined && isDatetimeAfter(date, max)) {
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return max;
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}
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return date;
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};
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export const cloneDate = (date: Date): Date => {
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return new Date(date);
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};
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export const startOfDay = (date: Date): Date => {
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const d = cloneDate(date);
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d.setHours(0, 0, 0, 0);
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return d;
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};
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export const endOfDay = (date: Date): Date => {
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const d = cloneDate(date);
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d.setHours(23, 59, 59, 999);
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return d;
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};
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export const startOfWeek = (date: Date): Date => {
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const d = cloneDate(date);
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d.setDate(getDayOfMonth(d) - getDayOfWeek(d));
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d.setHours(0, 0, 0, 0);
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return d;
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};
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export const endOfWeek = (date: Date): Date => {
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const d = cloneDate(date);
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d.setDate(getDayOfMonth(d) + (6 - getDayOfWeek(d)));
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d.setHours(23, 59, 59, 999);
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return d;
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};
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export const startOfMonth = (date: Date): Date => {
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const d = cloneDate(date);
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d.setDate(1);
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d.setHours(0, 0, 0, 0);
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return d;
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};
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export const endOfMonth = (date: Date): Date => {
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const d = cloneDate(date);
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d.setMonth(getMonth(d) + 1, 0);
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d.setHours(23, 59, 59, 999);
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return d;
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};
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export const startOfYear = (date: Date): Date => {
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const d = cloneDate(date);
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d.setMonth(0, 1);
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d.setHours(0, 0, 0, 0);
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return d;
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};
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export const endOfYear = (date: Date): Date => {
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const d = cloneDate(date);
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d.setMonth(11, 31);
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d.setHours(23, 59, 59, 999);
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return d;
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};
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export const addMilliseconds = (date: Date, milliseconds: number): Date => {
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const d = cloneDate(date);
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d.setMilliseconds(getMilliseconds(d) + milliseconds);
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return d;
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};
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export const addSeconds = (date: Date, seconds: number): Date => {
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const d = cloneDate(date);
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d.setSeconds(getSeconds(d) + seconds);
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return d;
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};
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export const addMinutes = (date: Date, minutes: number): Date => {
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const d = cloneDate(date);
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d.setMinutes(getMinutes(d) + minutes);
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return d;
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};
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export const addHours = (date: Date, hours: number): Date => {
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const d = cloneDate(date);
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d.setHours(getHours(d) + hours);
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return d;
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};
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export const addDays = (date: Date, days: number): Date => {
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const d = cloneDate(date);
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d.setDate(getDayOfMonth(d) + days);
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return d;
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};
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export const addMonths = (date: Date, months: number): Date => {
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const d = cloneDate(date);
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d.setMonth(getMonth(d) + months);
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return d;
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};
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export const addYears = (date: Date, years: number): Date => {
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const d = cloneDate(date);
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d.setFullYear(getYear(d) + years);
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return d;
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};
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export const previousDay = (date: Date, day: DayOfWeek): Date => {
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let delta = day - getDayOfWeek(date);
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if (delta >= 0) {
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delta -= 7;
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}
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return addDays(date, delta);
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};
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export const nextDay = (date: Date, day: DayOfWeek): Date => {
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let delta = day - getDayOfWeek(date);
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if (delta <= 0) {
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delta += 7;
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}
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return addDays(date, delta);
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};