Run results for: Native replaceAll vs regex replace vs replace with String.raw

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/121.0.6167.138 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 121

Operating system: iOS 17.1

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

replace regex

344.7M/s

replace All

9.1M/s

replace regex with String.raw

3.8M/s

View exact numbers

Test name	Executions per second
✓ replace regex	344,673,152 Ops/sec
replace All	9,114,895 Ops/sec
replace regex with String.raw	3,833,681 Ops/sec

Tests:

replace regex
"Hello, [%user_name%]! What's up, [%user_name%]?".replace(/\[\%user_name\%\]/g, 'Jane');
replace All
"Hello, [%user_name%]! What's up, [%user_name%]?".replaceAll(`[%user_name%]`, 'Jane');
replace regex with String.raw
"Hello, [%user_name%]! What's up, [%user_name%]?".replace(new RegExp(String.raw`\[\%user_name\%\]`, "g"), 'Jane');