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'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');
}
}
|
