'use strict'; const common = require('../common.js'); const assert = require('assert'); const URLSearchParams = new (require('url').URL)('a:').searchParams.constructor; const bench = common.createBenchmark(main, { method: ['forEach', 'iterator'], n: [1e6] }); const str = 'one=single&two=first&three=first&two=2nd&three=2nd&three=3rd'; function forEach(n) { const params = new URLSearchParams(str); const noDead = []; const cb = (val, key) => { noDead[0] = key; noDead[1] = val; }; bench.start(); for (var i = 0; i < n; i += 1) params.forEach(cb); bench.end(n); assert.strictEqual(noDead[0], 'three'); assert.strictEqual(noDead[1], '3rd'); } function iterator(n) { const params = new URLSearchParams(str); const noDead = []; bench.start(); for (var i = 0; i < n; i += 1) for (var pair of params) { noDead[0] = pair[0]; noDead[1] = pair[1]; } bench.end(n); assert.strictEqual(noDead[0], 'three'); assert.strictEqual(noDead[1], '3rd'); } function main(conf) { const method = conf.method; const n = conf.n | 0; switch (method) { case 'forEach': forEach(n); break; case 'iterator': iterator(n); break; default: throw new Error('Unknown method'); } }