Run results for: startsWith vs includes vs regex test when no match

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/124.0.6367.71 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 124

Operating system: iOS 17.4

Device Platform: Mobile

Date tested: 2 years ago

/^bonjour/.test("Hello this is a test, would you look at that")

516.8M/s

"Hello this is a test, would you look at that".startsWith("bonjour")

79.1M/s

"Hello this is a test, would you look at that".includes("bonjour")

33.6M/s

View exact numbers

Test name	Executions per second
✓ /^bonjour/.test("Hello this is a test, would you look at that")	516,786,816 Ops/sec
"Hello this is a test, would you look at that".startsWith("bonjour")	79,062,032 Ops/sec
"Hello this is a test, would you look at that".includes("bonjour")	33,572,068 Ops/sec

Tests:

"Hello this is a test, would you look at that".startsWith("bonjour")
"Hello this is a test, would you look at that".startsWith("bonjour")
"Hello this is a test, would you look at that".includes("bonjour")
"Hello this is a test, would you look at that".includes("bonjour")
/^bonjour/.test("Hello this is a test, would you look at that")
/^bonjour/.test("Hello this is a test, would you look at that")