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'use strict'; const common = require('../common.js'); const assert = require('assert'); const bench = common.createBenchmark(main, { method: ['withoutdefaults', 'withdefaults'], n: [1e8] }); function oldStyleDefaults(x, y) { x = x || 1; y = y || 2; assert.strictEqual(x, 1); assert.strictEqual(y, 2); } function defaultParams(x = 1, y = 2) { assert.strictEqual(x, 1); assert.strictEqual(y, 2); } function runOldStyleDefaults(n) { bench.start(); for (var i = 0; i < n; i++) oldStyleDefaults(); bench.end(n); } function runDefaultParams(n) { bench.start(); for (var i = 0; i < n; i++) defaultParams(); bench.end(n); } function main({ n, method }) { switch (method) { case '': // Empty string falls through to next line as default, mostly for tests. case 'withoutdefaults': runOldStyleDefaults(n); break; case 'withdefaults': runDefaultParams(n); break; default: throw new Error(`Unexpected method "${method}"`); } }