Server : Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.20 System : Linux st2.domain.com 3.10.0-1127.10.1.el7.x86_64 #1 SMP Wed Jun 3 14:28:03 UTC 2020 x86_64 User : apache ( 48) PHP Version : 7.4.20 Disable Function : NONE Directory : /home/real/node-v13.0.1/benchmark/es/ |
'use strict';
const common = require('../common.js');
const util = require('util');
const bench = common.createBenchmark(main, {
method: ['spread', 'assign', '_extend'],
count: [5, 10, 20],
n: [1e6]
});
function main({ n, context, count, rest, method }) {
const src = {};
for (let n = 0; n < count; n++)
src[`p${n}`] = n;
let obj; // eslint-disable-line no-unused-vars
let i;
switch (method) {
case '':
// Empty string falls through to next line as default, mostly for tests.
case '_extend':
bench.start();
for (i = 0; i < n; i++)
obj = util._extend({}, src);
bench.end(n);
break;
case 'assign':
bench.start();
for (i = 0; i < n; i++)
obj = Object.assign({}, src);
bench.end(n);
break;
case 'spread':
bench.start();
for (i = 0; i < n; i++)
obj = { ...src };
bench.end(n);
break;
default:
throw new Error('Unexpected method');
}
}