Run results for: Test filter and map123

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.101 Safari/537.36

Browser: Chrome 91

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
map then filter	80.3 Ops/sec
filter tehn map	311.6 Ops/sec

Script Preparation code:

testCase = new Array(100000).fill(1).map(() => Math.random() > 0.5 ? {id: '123'} : undefined)

Tests: