Run results for: Reduce vs forEach test

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser: Chrome 126

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
reduce	649.4 Ops/sec
forEach	840.2 Ops/sec

Script Preparation code:

var fields = Array.from({
    length: 100000
}, (v, i) => ({
    fieldName: i,
    value: i % 2 === 0
}));

Tests:

reduce
var customFields = fields.reduce((acc, { fieldName, value }) => { acc[fieldName] = value; return acc; }, {});
forEach
var customFields = {}; fields.forEach(({ fieldName, value }) => (customFields[fieldName] = value));