Run results for: Object Assignment vs DefineProperties

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.126 Safari/537.36

Browser: Chrome 104

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Object Assign	16044836.0 Ops/sec
DefineProperties Function	3954.1 Ops/sec

Tests:

Object Assign
let n = 100; while (n--) { const obj = { a: function() { return 0; }, b: function() { return this.a(); }, c: 15, d: 'string', e: function(n) { return this.c + n; }, f: function(n) { this.c += n; } }; }
DefineProperties Function
let n = 100; while (n--) { const obj2 = {}; Object.defineProperties(obj2, { a: { value: function() { return 0; } }, b: { value: function() { return this.a(); }}, c: { value: 15, writable: false }, d: { value: 'string' }, e: { value: function(n) { return this.c + n; } }, f: { value: function(n) { this.c += n; }} }) }