Run results for: Merge objects

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.27 Safari/537.36 OPR/62.0.3323.0 (Edition developer)

Browser: Opera 62

Operating system: Linux

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
lodash	2391709.0 Ops/sec
es5	3367073.0 Ops/sec
es6	1700136.0 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

lodash
const firstObject = { a: 'Hello,', b: 'World' }; const secondObject = { c: '!' }; const mergerdObject = _.merge(firstObject, secondObject);
es5
const firstObject = { a: 'Hello,', b: 'World' }; const secondObject = { c: '!' }; const mergedObject = Object.keys(firstObject) .reduce(function(accumulator, key) { accumulator[key] = secondObject[key] return accumulator }, {});
es6
const firstObject = { a: 'Hello,', b: 'World' }; const secondObject = { c: '!' }; const mergedObject = Object.keys(firstObject) .reduce((a, key) => ({ ...a, [key]: secondObject[key]}), {});

Run results for: Merge objects

lodash

es5

es6