Run results for: fp.assign vs fp.set vs spread

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.143 YaBrowser/22.5.0.1885 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 22

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
fp.assign	1051835.0 Ops/sec
fp.set	107563.9 Ops/sec
spread	1618889.0 Ops/sec

HTML Preparation code:

<script src='https://cdn.jsdelivr.net/g/lodash@4(lodash.min.js+lodash.fp.min.js)'></script>

Tests:

fp.assign
const state = { a: '1', b: '2', c: { ca: 1 } }; const report = { c: { cb: 2, }, d: '4', } const newState = _.assign(state, report);
fp.set
const state = { a: '1', b: '2', c: { ca: 1 } }; const report = { c: { cb: 2, }, d: '4', } const newState = _.flow( _.set('c', report.c), _.set('d', report.d), )(state);
spread
const state = { a: '1', b: '2', c: { ca: 1 } }; const report = { c: { cb: 2, }, d: '4', } const newState = { ...state, ...report };