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const Linkier = require('./linkier.js');
const Link = require('./modules/link.js');
const Lazy = require('./modules/lazy.js');
const Benchmark = require('benchmark');

// Generate a random list of 100,000 integer between 0 and 1,000.
const items = [];
for (let i = 0; i < 100000; ++i) {
    items[i] = Math.floor(Math.random() * 1001);
}

const suite = new Benchmark.Suite;
const linkier = Linkier(items).filter(n => n % 2 === 0).take(10000).map(n => n + 1);
const link = Link(items).filter(n => n % 2 === 0).take(10000).map(n => n + 1);
const lazy = Lazy(items).filter(n => n % 2 === 0).take(10000).map(n => n + 1);

suite.add('Linkier', function() {
    linkier.reduce((a, n) => a + n, 0);
}).add('Link', function() {
    link.reduce((a, n) => a + n, 0);
}).add('Lazy', function() {
    lazy.reduce((a, n) => a + n, 0);
}).add('For Loop', function() {
    let n = 0;
    let r = 0;
    for (let i = 0; i < items.length; ++i) {
        if (items[i] % 2 === 0) {
            n++;
            if (n <= 10000) {
                const m = items[i] + 1;
                r = r + m;
            }
        }
    }
}).add('For Loop 2', function() {
    let n = 0;
    let r = 0;
    for (let i = 0; i < items.length; ++i) {
        if (items[i] % 2 === 0) {
            n++;
            if (n <= 10000) {
                const m = items[i] + 1;
                r = r + m;
            } else {
                break;
            }
        }
    }
}).on('cycle', (event) => {
    console.log(String(event.target));
}).on('complete', function() {
    console.log('Fastest is: ' + this.filter('fastest').map('name'));
}).run({ async: true });

Linkier x 4,242 ops/sec ±5.49% (78 runs sampled)
Link x 3,786 ops/sec ±2.13% (91 runs sampled)
Lazy x 2,917 ops/sec ±2.87% (91 runs sampled)
For Loop x 2,213 ops/sec ±2.01% (96 runs sampled)
For Loop 2 x 11,052 ops/sec ±1.52% (97 runs sampled)
Fastest is: For Loop 2