Run results for: map vs object d23d32d32d123d32d23d332d23d32

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36

Browser: Chrome 83

Operating system: Mac OS X 10.15.2

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
using object	41.2 Ops/sec
using map	41.3 Ops/sec

Script Preparation code:

function usingObject() {
	let pingsData = {};

	for ( let i = 0; i < 1000; i++ ) {
		pingsData[ i ] = 'aaaaaaaaaaa';

		Object.keys( pingsData ).length;

		console.log( pingsData );

		if ( i % 10 === 0 ) {
			pingsData = {};
		}
	}
}

function usingMap() {
	const pingsData = new Map();

	for ( let i = 0; i < 1000; i++ ) {
		pingsData.set( i, 'aaaaaaaaaaa' );

		pingsData.size;

		console.log( Object.fromEntries( pingsData ) );

		if ( i % 10 === 0 ) {
			pingsData.clear();
		}
	}
}

Tests:

using object
usingObject();
using map
usingMap()

Run results for: map vs object d23d32d32d123d32d23d332d23d32

using object

using map