Run results for: Map string versus number keys big sets

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.1.2 Safari/605.1.15

Browser: Safari 12

Operating system: Mac OS X 10.12.6

Device Platform: Desktop

Date tested: 5 months ago

Int

1.6M/s

String

23K/s

View exact numbers

Test name	Executions per second
✓ Int	1,606,028 Ops/sec
String	22,664 Ops/sec

Script Preparation code:

var intMap = new Map();
for(i=0; i < 1000; i++){
  intMap.set(i, "a" + i);
}

var stringMap = new Map();
for(i=0; i < 1000; i++){
  intMap.set(i.toString(), "a" + i);
}

Tests:

String
for(i=0; i < 1000; i++){ var a = stringMap.get(i.toString()); }
Int
for(i=0; i < 1000; i++){ var a = stringMap.get(i); }