@taiga-ui/cdk/esm2022/date-time/month.mjs

Base library for creating Angular components and applications using Taiga UI principles regarding of actual visual appearance

/// <reference types="@taiga-ui/tsconfig/ng-dev-mode" />
import { tuiInRange, tuiNormalizeToIntNumber } from '@taiga-ui/cdk/utils/math';
import { MAX_MONTH, MIN_MONTH, MONTHS_IN_YEAR } from './date-time';
import { TuiMonthNumber } from './month-number';
import { TuiYear } from './year';
/**
 * Immutable object consisting of year and month
 */
export class TuiMonth extends TuiYear {
    /**
     * @param year
     * @param month (starting with 0)
     */
    constructor(year, month) {
        super(year);
        this.month = month;
        ngDevMode && console.assert(TuiMonth.isValidMonth(year, month));
    }
    /**
     * Tests month and year for validity
     */
    static isValidMonth(year, month) {
        return TuiYear.isValidYear(year) && TuiMonth.isValidMonthPart(month);
    }
    /**
     * Returns number of days in a month
     */
    static getMonthDaysCount(month, isLeapYear) {
        ngDevMode && console.assert(TuiMonth.isValidMonthPart(month));
        switch (month) {
            case TuiMonthNumber.April:
            case TuiMonthNumber.June:
            case TuiMonthNumber.November:
            case TuiMonthNumber.September:
                return 30;
            case TuiMonthNumber.February:
                return isLeapYear ? 29 : 28;
            default:
                return 31;
        }
    }
    /**
     * Returns current month and year based on local time zone
     * @nosideeffects
     */
    static currentLocal() {
        const nativeDate = new Date();
        return new TuiMonth(nativeDate.getFullYear(), nativeDate.getMonth());
    }
    /**
     * Returns current month and year based on UTC
     */
    static currentUtc() {
        const nativeDate = new Date();
        return new TuiMonth(nativeDate.getUTCFullYear(), nativeDate.getUTCMonth());
    }
    static lengthBetween(from, to) {
        const absoluteFrom = from.month + from.year * 12;
        const absoluteTo = to.month + to.year * 12;
        return absoluteTo - absoluteFrom;
    }
    /**
     * Normalizes number by clamping it between min and max month
     */
    static normalizeMonthPart(month) {
        return tuiNormalizeToIntNumber(month, MIN_MONTH, MAX_MONTH);
    }
    /**
     * Tests month for validity
     */
    static isValidMonthPart(month) {
        return Number.isInteger(month) && tuiInRange(month, MIN_MONTH, MAX_MONTH + 1);
    }
    get formattedMonthPart() {
        return String(this.month + 1).padStart(2, '0');
    }
    /**
     * Returns days in a month
     */
    get daysCount() {
        return TuiMonth.getMonthDaysCount(this.month, this.isLeapYear);
    }
    /**
     * Passed month and year are after current
     */
    monthBefore(another) {
        return (this.yearBefore(another) ||
            (this.yearSame(another) && this.month < another.month));
    }
    /**
     * Passed month and year are after or the same as current
     */
    monthSameOrBefore(another) {
        return (this.yearBefore(another) ||
            (this.yearSame(another) && this.month <= another.month));
    }
    /**
     * Passed month and year are the same as current
     */
    monthSame(another) {
        return this.yearSame(another) && this.month === another.month;
    }
    /**
     * Passed month and year are either before or equal to current
     */
    monthSameOrAfter(another) {
        return (this.yearAfter(another) ||
            (this.yearSame(another) && this.month >= another.month));
    }
    /**
     * Passed month and year are before current
     */
    monthAfter(another) {
        return (this.yearAfter(another) ||
            (this.yearSame(another) && this.month > another.month));
    }
    /**
     * Immutably alters current month and year by passed offset
     *
     * @param offset
     * @return new month and year object as a result of offsetting current
     */
    append({ year = 0, month = 0 }) {
        const totalMonths = (this.year + year) * MONTHS_IN_YEAR + this.month + month;
        return new TuiMonth(Math.floor(totalMonths / MONTHS_IN_YEAR), totalMonths % MONTHS_IN_YEAR);
    }
    toString() {
        return `${this.formattedMonthPart}.${this.formattedYear}`;
    }
    valueOf() {
        return this.toLocalNativeDate().valueOf();
    }
    toJSON() {
        return `${super.toJSON()}-${this.formattedMonthPart}`;
    }
    /**
     * Returns native {@link Date} based on local time zone
     */
    toLocalNativeDate() {
        const date = new Date(this.year, this.month);
        // for years less than 1900
        date.setFullYear(this.year);
        return date;
    }
    /**
     * Returns native {@link Date} based on UTC
     */
    toUtcNativeDate() {
        return new Date(Date.UTC(this.year, this.month));
    }
}
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<reference types=\"@taiga-ui/tsconfig/ng-dev-mode\" />\n\nimport {tuiInRange, tuiNormalizeToIntNumber} from '@taiga-ui/cdk/utils/math';\n\nimport {MAX_MONTH, MIN_MONTH, MONTHS_IN_YEAR} from './date-time';\nimport {TuiMonthNumber} from './month-number';\nimport {type TuiMonthLike} from './types';\nimport {TuiYear} from './year';\n\n/**\n * Immutable object consisting of year and month\n */\nexport class TuiMonth extends TuiYear implements TuiMonthLike {\n    /**\n     * @param year\n     * @param month (starting with 0)\n     */\n    constructor(\n        year: number,\n        public readonly month: number,\n    ) {\n        super(year);\n        ngDevMode && console.assert(TuiMonth.isValidMonth(year, month));\n    }\n\n    /**\n     * Tests month and year for validity\n     */\n    public static isValidMonth(year: number, month: number): boolean {\n        return TuiYear.isValidYear(year) && TuiMonth.isValidMonthPart(month);\n    }\n\n    /**\n     * Returns number of days in a month\n     */\n    public static getMonthDaysCount(month: number, isLeapYear: boolean): number {\n        ngDevMode && console.assert(TuiMonth.isValidMonthPart(month));\n\n        switch (month) {\n            case TuiMonthNumber.April:\n            case TuiMonthNumber.June:\n            case TuiMonthNumber.November:\n            case TuiMonthNumber.September:\n                return 30;\n            case TuiMonthNumber.February:\n                return isLeapYear ? 29 : 28;\n            default:\n                return 31;\n        }\n    }\n\n    /**\n     * Returns current month and year based on local time zone\n     * @nosideeffects\n     */\n    public static currentLocal(): TuiMonth {\n        const nativeDate = new Date();\n\n        return new TuiMonth(nativeDate.getFullYear(), nativeDate.getMonth());\n    }\n\n    /**\n     * Returns current month and year based on UTC\n     */\n    public static currentUtc(): TuiMonth {\n        const nativeDate = new Date();\n\n        return new TuiMonth(nativeDate.getUTCFullYear(), nativeDate.getUTCMonth());\n    }\n\n    public static override lengthBetween(from: TuiMonth, to: TuiMonth): number {\n        const absoluteFrom = from.month + from.year * 12;\n        const absoluteTo = to.month + to.year * 12;\n\n        return absoluteTo - absoluteFrom;\n    }\n\n    /**\n     * Normalizes number by clamping it between min and max month\n     */\n    public static normalizeMonthPart(month: number): number {\n        return tuiNormalizeToIntNumber(month, MIN_MONTH, MAX_MONTH);\n    }\n\n    /**\n     * Tests month for validity\n     */\n    private static isValidMonthPart(month: number): boolean {\n        return Number.isInteger(month) && tuiInRange(month, MIN_MONTH, MAX_MONTH + 1);\n    }\n\n    public get formattedMonthPart(): string {\n        return String(this.month + 1).padStart(2, '0');\n    }\n\n    /**\n     * Returns days in a month\n     */\n    public get daysCount(): number {\n        return TuiMonth.getMonthDaysCount(this.month, this.isLeapYear);\n    }\n\n    /**\n     * Passed month and year are after current\n     */\n    public monthBefore(another: TuiMonth): boolean {\n        return (\n            this.yearBefore(another) ||\n            (this.yearSame(another) && this.month < another.month)\n        );\n    }\n\n    /**\n     * Passed month and year are after or the same as current\n     */\n    public monthSameOrBefore(another: TuiMonth): boolean {\n        return (\n            this.yearBefore(another) ||\n            (this.yearSame(another) && this.month <= another.month)\n        );\n    }\n\n    /**\n     * Passed month and year are the same as current\n     */\n    public monthSame(another: TuiMonth): boolean {\n        return this.yearSame(another) && this.month === another.month;\n    }\n\n    /**\n     * Passed month and year are either before or equal to current\n     */\n    public monthSameOrAfter(another: TuiMonth): boolean {\n        return (\n            this.yearAfter(another) ||\n            (this.yearSame(another) && this.month >= another.month)\n        );\n    }\n\n    /**\n     * Passed month and year are before current\n     */\n    public monthAfter(another: TuiMonth): boolean {\n        return (\n            this.yearAfter(another) ||\n            (this.yearSame(another) && this.month > another.month)\n        );\n    }\n\n    /**\n     * Immutably alters current month and year by passed offset\n     *\n     * @param offset\n     * @return new month and year object as a result of offsetting current\n     */\n    public override append({year = 0, month = 0}: TuiMonthLike): TuiMonth {\n        const totalMonths = (this.year + year) * MONTHS_IN_YEAR + this.month + month;\n\n        return new TuiMonth(\n            Math.floor(totalMonths / MONTHS_IN_YEAR),\n            totalMonths % MONTHS_IN_YEAR,\n        );\n    }\n\n    public override toString(): string {\n        return `${this.formattedMonthPart}.${this.formattedYear}`;\n    }\n\n    public override valueOf(): number {\n        return this.toLocalNativeDate().valueOf();\n    }\n\n    public override toJSON(): string {\n        return `${super.toJSON()}-${this.formattedMonthPart}`;\n    }\n\n    /**\n     * Returns native {@link Date} based on local time zone\n     */\n    public toLocalNativeDate(): Date {\n        const date = new Date(this.year, this.month);\n\n        // for years less than 1900\n        date.setFullYear(this.year);\n\n        return date;\n    }\n\n    /**\n     * Returns native {@link Date} based on UTC\n     */\n    public toUtcNativeDate(): Date {\n        return new Date(Date.UTC(this.year, this.month));\n    }\n}\n"]}