Run results for: Map get VS Map has get

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; Touch; rv:11.0) like Gecko

Browser: IE 11

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Map 1

8K/s

Map 2

7K/s

View exact numbers

Test name	Executions per second
✓ Map 1	8,186 Ops/sec
Map 2	6,765 Ops/sec

Script Preparation code:

var i = 0, count = 1000, a;
var map = new Map();

for (i = 0; i < count; i++) {
  if (Math.random() > 0.5) {
    map.set(i, i * i);
  }
}

Tests: