Run results for: indexOf vs map 002-5f

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
indexOf	975.0 Ops/sec
map	1817.8 Ops/sec

Script Preparation code:

var array = [];
for (var i=0; i<19; ++i) {
  	array.push('000' + i);
}

var map = new Map();
array.forEach(item => map.set(item, 111));

Tests:

indexOf
for (var i=0; i<10000; ++i) { const x = array.indexOf("0009") !== -1; // middle }
map
for (var i=0; i<10000; ++i) { const x = map.get("0000") !== -1; }