unique-list/dist/index.js

A mix of an Array an a Map.

"use strict";
class UniqueList {
    constructor(uniqueCallBack, initialValues) {
        this.uniqueCallBack = uniqueCallBack;
        this.hash = {};
        this.list = new Array();
        if (initialValues) {
            this.pushAll(initialValues);
        }
    }
    hasItem(id) {
        return this.hash[id] !== undefined;
    }
    get(id) {
        return this.hash[id];
    }
    getAllKeys() {
        var keys = new Array();
        for (var prop in this.hash) {
            keys.push(prop);
        }
        return keys;
    }
    getAll() {
        return this.list;
    }
    getAt(idx) {
        return this.list[idx];
    }
    setAt(idx, item) {
        this.list[idx] = item;
        this.hash[this.uniqueCallBack(item)] = item;
    }
    hasItems() {
        return this.list.length > 0;
    }
    push(item) {
        var uniqueId = this.uniqueCallBack(item);
        if (!this.hash[uniqueId]) {
            this.hash[uniqueId] = item;
            this.list.push(item);
            this.length = this.list.length;
        }
    }
    pushAll(items) {
        items.forEach(value => {
            this.push(value);
        });
    }
    insertAt(item, idx) {
        var uniqueId = this.uniqueCallBack(item);
        if (!this.hash[uniqueId]) {
            this.hash[uniqueId] = item;
            this.list.splice(idx, 0, item);
            this.length = this.list.length;
        }
    }
    remove(item) {
        var uniqueId = this.uniqueCallBack(item);
        if (this.hash[uniqueId]) {
            var idx = this.list.indexOf(item);
            this.list.splice(idx, 1);
            this.length = this.list.length;
            delete this.hash[uniqueId];
        }
    }
    clear() {
        this.list = [];
        this.hash = {};
        this.length = 0;
    }
}
exports.UniqueList = UniqueList;