Run results for: Some vs. Every Includes

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/120.0.6099.119 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 120

Operating system: iOS 17.2

Device Platform: Mobile

Date tested: 9 months ago

Test name	Executions per second
Some (Non-Existing Value)	11163799.0 Ops/sec
Every (Non-Existing Value)	10613557.0 Ops/sec
Some (Existing Value)	13546239.0 Ops/sec
Every (Existing Value)	11696356.0 Ops/sec

Script Preparation code:

var array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16];

Tests:

Some (Non-Existing Value)
!array.some(value => value === 20);
Every (Non-Existing Value)
array.every(value => value !== 20);
Some (Existing Value)
!array.some(value => value === 10);
Every (Existing Value)
array.every(value => value !== 10);

Run results for: Some vs. Every Includes

Check if NOT some members of an array equal a value vs. checking if all values in an array aren't equal to a value.

Some (Non-Existing Value)

Every (Non-Existing Value)

Some (Existing Value)

Every (Existing Value)