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79 lines
1.6 KiB
79 lines
1.6 KiB
'use strict';
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const common = require('../common.js');
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const assert = require('assert');
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const bench = common.createBenchmark(main, {
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method: ['copy', 'rest', 'arguments'],
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millions: [100]
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});
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function copyArguments() {
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var len = arguments.length;
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var args = new Array(len);
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for (var i = 0; i < len; i++)
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args[i] = arguments[i];
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assert.strictEqual(args[0], 1);
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assert.strictEqual(args[1], 2);
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assert.strictEqual(args[2], 'a');
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assert.strictEqual(args[3], 'b');
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}
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function restArguments(...args) {
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assert.strictEqual(args[0], 1);
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assert.strictEqual(args[1], 2);
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assert.strictEqual(args[2], 'a');
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assert.strictEqual(args[3], 'b');
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}
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function useArguments() {
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assert.strictEqual(arguments[0], 1);
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assert.strictEqual(arguments[1], 2);
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assert.strictEqual(arguments[2], 'a');
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assert.strictEqual(arguments[3], 'b');
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}
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function runCopyArguments(n) {
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var i = 0;
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bench.start();
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for (; i < n; i++)
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copyArguments(1, 2, 'a', 'b');
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bench.end(n / 1e6);
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}
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function runRestArguments(n) {
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var i = 0;
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bench.start();
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for (; i < n; i++)
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restArguments(1, 2, 'a', 'b');
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bench.end(n / 1e6);
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}
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function runUseArguments(n) {
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var i = 0;
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bench.start();
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for (; i < n; i++)
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useArguments(1, 2, 'a', 'b');
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bench.end(n / 1e6);
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}
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function main(conf) {
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const n = +conf.millions * 1e6;
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switch (conf.method) {
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case 'copy':
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runCopyArguments(n);
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break;
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case 'rest':
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runRestArguments(n);
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break;
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case 'arguments':
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runUseArguments(n);
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break;
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default:
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throw new Error('Unexpected method');
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}
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}
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