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| Current File : //proc/self/root/proc/self/root/home/ubuntu/node-v16.18.1/benchmark/es/spread-assign.js |
'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;
switch (method) {
case '_extend':
bench.start();
for (let i = 0; i < n; i++)
obj = util._extend({}, src);
bench.end(n);
break;
case 'assign':
bench.start();
for (let i = 0; i < n; i++)
obj = Object.assign({}, src);
bench.end(n);
break;
case 'spread':
bench.start();
for (let i = 0; i < n; i++)
obj = { ...src }; // eslint-disable-line no-unused-vars
bench.end(n);
break;
default:
throw new Error('Unexpected method');
}
}
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