@taiga-ui/cdk
Version:
Base library for creating Angular components and applications using Taiga UI principles regarding of actual visual appearance
111 lines • 11.8 kB
JavaScript
/// <reference types="@taiga-ui/tsconfig/ng-dev-mode" />
import { tuiInRange, tuiNormalizeToIntNumber } from '@taiga-ui/cdk/utils/math';
import { MAX_YEAR, MIN_YEAR } from './date-time';
/**
* Immutable year object
* @nosideeffects
*/
export class TuiYear {
constructor(year) {
this.year = year;
ngDevMode && console.assert(TuiYear.isValidYear(year));
}
/**
* Checks year for validity
*/
static isValidYear(year) {
return Number.isInteger(year) && tuiInRange(year, MIN_YEAR, MAX_YEAR + 1);
}
/**
* Check if passed year is a leap year
*/
static isLeapYear(year) {
ngDevMode && console.assert(TuiYear.isValidYear(year));
return year % 400 === 0 || (year % 4 === 0 && year % 100 !== 0);
}
/**
* Returns amount of leap years from year 0 to the passed one
*/
static getAbsoluteLeapYears(year) {
ngDevMode && console.assert(TuiYear.isValidYear(year));
return Math.ceil(year / 400) + (Math.ceil(year / 4) - Math.ceil(year / 100));
}
static lengthBetween(from, to) {
return to.year - from.year;
}
/**
* Normalizes year by clamping it between min and max years
*/
static normalizeYearPart(year) {
return tuiNormalizeToIntNumber(year, MIN_YEAR, MAX_YEAR);
}
get formattedYear() {
return String(this.year).padStart(4, '0');
}
get isLeapYear() {
return TuiYear.isLeapYear(this.year);
}
/**
* Returns amount of leap years from year 0 to current
*/
get absoluteLeapYears() {
return TuiYear.getAbsoluteLeapYears(this.year);
}
/**
* Passed year is after current
*/
yearBefore({ year }) {
return this.year < year;
}
/**
* Passed year is the same or after current
*/
yearSameOrBefore({ year }) {
return this.year <= year;
}
/**
* Passed year is the same as current
*/
yearSame({ year }) {
return this.year === year;
}
/**
* Passed year is either the same of before the current
*/
yearSameOrAfter({ year }) {
return this.year >= year;
}
/**
* Passed year is before current
*/
yearAfter({ year }) {
return this.year > year;
}
/**
* Immutably offsets year
*/
append({ year = 0 }) {
ngDevMode && console.assert(Number.isInteger(year));
const resultYear = this.year + year;
ngDevMode && console.assert(TuiYear.isValidYear(resultYear));
return new TuiYear(resultYear);
}
toString() {
return this.formattedYear;
}
valueOf() {
return this.year;
}
/**
* Returns the primitive value of the given Date object.
* Depending on the argument, the method can return either a string or a number.
* @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/@@toPrimitive
*/
[Symbol.toPrimitive](hint) {
return Date.prototype[Symbol.toPrimitive].call(this, hint);
}
toJSON() {
return this.formattedYear;
}
}
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Math.ceil(year / 100));\n    }\n\n    public static lengthBetween(from: TuiYear, to: TuiYear): number {\n        return to.year - from.year;\n    }\n\n    /**\n     * Normalizes year by clamping it between min and max years\n     */\n    public static normalizeYearPart(year: number): number {\n        return tuiNormalizeToIntNumber(year, MIN_YEAR, MAX_YEAR);\n    }\n\n    public get formattedYear(): string {\n        return String(this.year).padStart(4, '0');\n    }\n\n    public get isLeapYear(): boolean {\n        return TuiYear.isLeapYear(this.year);\n    }\n\n    /**\n     * Returns amount of leap years from year 0 to current\n     */\n    public get absoluteLeapYears(): number {\n        return TuiYear.getAbsoluteLeapYears(this.year);\n    }\n\n    /**\n     * Passed year is after current\n     */\n    public yearBefore({year}: TuiYear): boolean {\n        return this.year < year;\n    }\n\n    /**\n     * Passed year is the same or after current\n     */\n    public yearSameOrBefore({year}: TuiYear): boolean {\n        return this.year <= year;\n    }\n\n    /**\n     * Passed year is the same as current\n     */\n    public yearSame({year}: TuiYear): boolean {\n        return this.year === year;\n    }\n\n    /**\n     * Passed year is either the same of before the current\n     */\n    public yearSameOrAfter({year}: TuiYear): boolean {\n        return this.year >= year;\n    }\n\n    /**\n     * Passed year is before current\n     */\n    public yearAfter({year}: TuiYear): boolean {\n        return this.year > year;\n    }\n\n    /**\n     * Immutably offsets year\n     */\n    public append({year = 0}: TuiYearLike): TuiYear {\n        ngDevMode && console.assert(Number.isInteger(year));\n\n        const resultYear = this.year + year;\n\n        ngDevMode && console.assert(TuiYear.isValidYear(resultYear));\n\n        return new TuiYear(resultYear);\n    }\n\n    public toString(): string {\n        return this.formattedYear;\n    }\n\n    public valueOf(): number {\n        return this.year;\n    }\n\n    /**\n     * Returns the primitive value of the given Date object.\n     * Depending on the argument, the method can return either a string or a number.\n     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/@@toPrimitive\n     */\n    public [Symbol.toPrimitive](hint: string): number | string {\n        return Date.prototype[Symbol.toPrimitive].call(this, hint);\n    }\n\n    public toJSON(): string {\n        return this.formattedYear;\n    }\n}\n"]}