nowjs-core/lib/collections/Stack.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 Collection_1 = require("./Collection");
const List_1 = require("./List");
class Stack {
    constructor(enumerable) {
        this.arr = [];
        if (enumerable && enumerable[Symbol.iterator]) {
            for (const x of enumerable) {
                this.push(x);
            }
        }
    }
    contains(item) {
        return (this.arr.findIndex(xx => {
            return xx === item;
        }) >= 0);
    }
    get size() {
        return this.arr.length;
    }
    clear() {
        this.arr = [];
        return true;
    }
    push(...rest) {
        if (rest instanceof Array) {
            for (const xx of rest) {
                this.arr.push(xx);
            }
            return true;
        }
        else {
            this.arr.push(rest);
            return true;
        }
    }
    pop() {
        return this.arr.pop();
    }
    peek() {
        if (this.arr.length > 0)
            return this.arr[0];
        else
            return null;
    }
    toArray() {
        const array = [];
        for (const xx of this) {
            array.push(xx);
        }
        return array;
    }
    toCollection() {
        return new Collection_1.Collection(this);
    }
    toList() {
        return new List_1.List(this);
    }
    linq() {
        return new index_1.Enumerable(this);
    }
    plinq() {
        return new index_1.ParallelEnumerable(this);
    }
    [Symbol.iterator]() {
        return this.arr[Symbol.iterator]();
    }
    clone() {
        return new Stack(this);
    }
    toSet() {
        return new Set(this);
    }
    isEmpty() {
        return this.size === 0;
    }
}
exports.Stack = Stack;