bb6125bac7This reverts commit 7cfbc9f90f.
PR-URL: https://github.com/nodejs/node/pull/31755
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
48 lines
876 B
JavaScript
48 lines
876 B
JavaScript
'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: ['swap', 'destructure'],
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n: [1e8]
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});
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function runSwapManual(n) {
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let x, y, r;
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bench.start();
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for (let i = 0; i < n; i++) {
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x = 1, y = 2;
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r = x;
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x = y;
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y = r;
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assert.strictEqual(x, 2);
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assert.strictEqual(y, 1);
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}
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bench.end(n);
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}
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function runSwapDestructured(n) {
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let x, y;
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bench.start();
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for (let i = 0; i < n; i++) {
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x = 1, y = 2;
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[x, y] = [y, x];
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assert.strictEqual(x, 2);
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assert.strictEqual(y, 1);
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}
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bench.end(n);
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}
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function main({ n, method }) {
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switch (method) {
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case 'swap':
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runSwapManual(n);
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break;
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case 'destructure':
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runSwapDestructured(n);
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break;
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default:
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throw new Error(`Unexpected method "${method}"`);
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}
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}
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