image-in-browser/lib/common/rational.js

Package for encoding / decoding images, transforming images, applying filters, drawing primitives on images on the client side (no need for server Node.js)

import { MathUtils } from './math-utils.js';
export class Rational {
    get numerator() {
        return this._numerator;
    }
    get denominator() {
        return this._denominator;
    }
    get toInt() {
        return this.denominator !== 0
            ? Math.trunc(this.numerator / this.denominator)
            : 0;
    }
    get toDouble() {
        return this.denominator !== 0 ? this.numerator / this.denominator : 0;
    }
    constructor(numerator, denominator) {
        this._numerator = numerator;
        this._denominator = denominator;
    }
    simplify() {
        const d = MathUtils.gcd(this.numerator, this.denominator);
        if (d !== 0) {
            this._numerator = Math.trunc(this.numerator / d);
            this._denominator = Math.trunc(this.denominator / d);
        }
    }
    equals(other) {
        return (this._numerator === other._numerator &&
            this._denominator === other._denominator);
    }
    toString() {
        return `${this.constructor.name} (${this._numerator}/${this._denominator})`;
    }
}
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