mirror of https://github.com/nodejs/node.git
43 lines
898 B
JavaScript
43 lines
898 B
JavaScript
'use strict';
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const common = require('../common.js');
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const util = require('util');
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const bench = common.createBenchmark(main, {
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method: ['spread', 'assign', '_extend'],
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count: [5, 10, 20],
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n: [1e6],
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});
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function main({ n, context, count, rest, method }) {
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const src = {};
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for (let n = 0; n < count; n++)
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src[`p${n}`] = n;
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let obj;
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switch (method) {
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case '_extend':
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bench.start();
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for (let i = 0; i < n; i++)
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obj = util._extend({}, src);
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bench.end(n);
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break;
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case 'assign':
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bench.start();
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for (let i = 0; i < n; i++)
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obj = Object.assign({}, src);
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bench.end(n);
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break;
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case 'spread':
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bench.start();
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for (let i = 0; i < n; i++)
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obj = { ...src }; // eslint-disable-line no-unused-vars
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bench.end(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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