nowjs-core/lib/collections/ReadonlyCollection.js

NowCanDo Javascript Core [nowjs-core] is a library written by TypeScript code maintains under Apache 2.0 licence

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const index_1 = require("../linq/index");
const index_2 = require("./index");
class ReadonlyCollection {
    constructor(enumerable) {
        this.arr = [];
        if (enumerable && enumerable[Symbol.iterator]) {
            for (const x of enumerable) {
                this.arr.push(x);
            }
        }
    }
    clear() {
        this.arr.splice(0, this.arr.length);
        return true;
    }
    contains(item) {
        return this.arr.includes(item);
    }
    get size() {
        return this.arr.length;
    }
    get(index) {
        return this.arr[index];
    }
    indexOf(item) {
        return this.arr.indexOf(item);
    }
    lastIndexOf(item) {
        return this.arr.lastIndexOf(item);
    }
    clone() {
        return new index_2.Collection(this);
    }
    join(seperator) {
        let res = '';
        const that = this;
        seperator = seperator !== undefined ? seperator : ' , ';
        if (that.size === 0) {
            return '';
        }
        else if (that.size === 1) {
            return that[Symbol.iterator]().next().value.toString();
        }
        else {
            const itr = that[Symbol.iterator]();
            res = itr.next().value.toString();
            for (const item of itr) {
                res = res + seperator + item.toString();
            }
        }
        return res;
    }
    isEmpty() {
        return this.size === 0;
    }
    toArray() {
        const arr = [];
        for (const item of this) {
            arr.push(item);
        }
        return arr;
    }
    toCollection() {
        return new index_2.Collection(this);
    }
    toList() {
        return new index_2.List(this);
    }
    toSet() {
        return new Set(this);
    }
    linq() {
        return new index_1.Enumerable(this);
    }
    plinq() {
        return new index_1.ParallelEnumerable(this);
    }
    [Symbol.iterator]() {
        return this.arr[Symbol.iterator]();
    }
}
exports.ReadonlyCollection = ReadonlyCollection;