typescript-algorithms-and-datastructures/dist/Stack.js

Useful algorithms and Data structures written in typescript.

(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define(["require", "exports"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    class Stack {
        constructor() {
            this.stack = [];
        }
        clear() {
            this.stack.length = 0;
        }
        isEmpty() {
            return this.stack.length === 0;
        }
        search(element) {
            const index = this.stack.lastIndexOf(element);
            return (index < 0) ? -1 : this.stack.length - 1 - index;
        }
        peek() {
            if (this.isEmpty()) {
                throw new Error('The stack is empty');
            }
            return this.stack[this.stack.length - 1];
        }
        pop() {
            if (this.isEmpty()) {
                throw new Error('The stack is empty');
            }
            return this.stack.pop();
        }
        push(element) {
            this.stack.push(element);
            return this;
        }
        size() {
            return this.stack.length;
        }
    }
    exports.Stack = Stack;
});
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