Run results for: shallow clone map vs clone object

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser: Chrome 138

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

clone object

32.0M/s

clone map

1.3M/s

View exact numbers

Test name	Executions per second
✓ clone object	31,996,362 Ops/sec
clone map	1,334,891 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Tests:

clone map
const mapA = new Map([['a', 1], ['b', 2], ['c', 3], ['d', 4], ['e', 5]]) const mapB = new Map(mapA)
clone object
const objA = { a: 1, b: 2, c: 3, d: 4, e: 5 } const objB = { ... objA}