Run results for: Object.defineProperty vs direct assignment

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
a	12473.7 Ops/sec
b	16879.5 Ops/sec

Tests:

a
let target = {}; let key = 'something'; for (let i = 0; i < 1000; i++) { Object.defineProperty(target, key + i, {value: i}); }
b
let target = {}; let key = 'something'; for (let i = 0; i < 1000; i++) { target[key + i] = i; }