@beenotung/tslib/hashed-array.js

utils library in Typescript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.HashedArray = void 0;
const array_1 = require("./array");
const lang_1 = require("./lang");
/**
 * <A> must be object.
 * For string, number e.t.c use Set instead
 * */
class HashedArray {
    mapper;
    array;
    o;
    constructor(mapper = x => x, array = [], o) {
        this.array = array;
        this.mapper = mapper;
        if (o) {
            this.o = o;
        }
        else {
            const o = {};
            array.forEach(x => (o[mapper(x)] = x));
            this.o = o;
        }
    }
    insert(x, key = this.mapper(x)) {
        this.array.push(x);
        this.o[key] = x;
        return this;
    }
    replace(x, key = this.mapper(x)) {
        const idx = this.array.findIndex(y => y === x);
        if (idx !== -1) {
            this.o[key] = this.array[idx] = x;
        }
        return this;
    }
    update(x, key = this.mapper(x)) {
        Object.assign(this.o[key], x);
        return this;
    }
    /**
     * insert or replace
     * */
    upsert(x, key = this.mapper(x)) {
        const y = this.o[key];
        if ((0, lang_1.isDefined)(y)) {
            Object.assign(y, x);
            return this;
        }
        else {
            return this.insert(x, key);
        }
    }
    remove(x) {
        return this.removeByKey(this.mapper(x));
    }
    removeByKey(key) {
        (0, array_1.removeBy)(this.array, x => this.mapper(x) === key);
        delete this.o[key];
        return this;
    }
    isEmpty(isValid) {
        return this.array.length === 0 || this.array.every(x => !isValid(x));
    }
    clear() {
        this.o = {};
        return (0, array_1.clearArray)(this.array);
    }
    get(key) {
        return this.o[key];
    }
    has(key) {
        return (0, lang_1.isDefined)(this.get(key));
    }
    set(key, x) {
        return this.update(x, key);
    }
    static from(xs) {
        const res = new HashedArray();
        xs.forEach(x => res.insert(x));
        return res;
    }
}
exports.HashedArray = HashedArray;