Run results for: Map vs Array vs Object set uint32 key speed

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36 OPR/54.0.2952.64

Browser: Opera 54

Operating system: Windows 7

Device Platform: Desktop

Date tested: 5 years ago

Script Preparation code:

var map = new Map();
var arr = [];
var obj = {};

var randomU32 = function() {
	return Math.random() * (1 << 31) >>> 0;
}

Tests: