node/benchmark/url/url-format.js

'use strict';
const common = require('../common.js');
const url = require('url');

const inputs = {
  slashes: { slashes: true, host: 'localhost' },
  file: { protocol: 'file:', pathname: '/foo' },
};

const bench = common.createBenchmark(main, {
  type: Object.keys(inputs),
  n: [25e6]
});

function main({ type, n }) {
  const input = inputs[type];

  // Force-optimize url.format() so that the benchmark doesn't get
  // disrupted by the optimizer kicking in halfway through.
  for (const name in inputs)
    url.format(inputs[name]);

  bench.start();
  for (let i = 0; i < n; i += 1)
    url.format(input);
  bench.end(n);
}