scraipt/dist/modules/jaacard.js

Scrape away inefficient code during compile-time using AI

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getJaacardSimilarity = exports.getJaacardDistance = exports.getJaacardIndex = void 0;
/**
 * Calculate the intersection of two arrays
 * @param {number[]} a - The first array
 * @param {number[]} b - The second array
 * @returns The intersection of the two arrays
 */
const intersection = (a, b) => {
    const setA = new Set(a);
    const setB = new Set(b);
    const intersection = new Set([...setA].filter((x) => setB.has(x)));
    return Array.from(intersection);
};
/**
 * Calculate the union of two arrays
 * @param {number[]} a - The first array
 * @param {number[]} b - The second array
 * @returns The union of the two arrays
 * */
const union = (a, b) => {
    const setA = new Set(a);
    const setB = new Set(b);
    const union = new Set([...setA, ...setB]);
    return Array.from(union);
};
/**
 * Calculate the difference of two arrays
 * @param {number[]} a - The first array
 * @param {number[]} b - The second array
 * @returns The difference of the two arrays
 * */
const difference = (a, b) => {
    const setA = new Set(a);
    const setB = new Set(b);
    const difference = new Set([...setA].filter((x) => !setB.has(x)));
    return Array.from(difference);
};
/**
 * Calculate the Jaacard index of two arrays
 * @param {number[]} a - The first array
 * @param {number[]} b - The second array
 * @returns The Jaacard index of the two arrays
 * */
const getJaacardIndex = (a, b) => {
    const intersectionLength = intersection(a, b).length;
    const unionLength = union(a, b).length;
    return intersectionLength / unionLength;
};
exports.getJaacardIndex = getJaacardIndex;
/**
 * Calculate the Jaacard distance of two arrays
 * @param {number[]} a - The first array
 * @param {number[]} b - The second array
 * @returns The Jaacard distance of the two arrays
 * */
const getJaacardDistance = (a, b) => {
    return 1 - (0, exports.getJaacardIndex)(a, b);
};
exports.getJaacardDistance = getJaacardDistance;
/**
 * Calculate the Jaacard similarity of two arrays
 * @param {number[]} a - The first array
 * @param {number[]} b - The second array
 * @returns The Jaacard similarity of the two arrays
 * */
const getJaacardSimilarity = (a, b) => {
    return 1 - (0, exports.getJaacardDistance)(a, b);
};
exports.getJaacardSimilarity = getJaacardSimilarity;