Benchmark: regexp with i option VS regexp with lowercase input

Script Preparation code:

var string = "Hello world!";
var test1 = (input)=>{
  var lower = input.toLowerCase();
  var pattern = /\b(wtf|shit|etc)\b/;
  return pattern.test(lower);
}
var test2 = (input)=>{
  var pattern = /\b(wtf|shit|etc)\b/i;
  return pattern.test(input);
}

Tests:

RegEx lowered
test1(string)
regex i
test2(string)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
RegEx lowered
regex i

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 5 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36

Browser/OS: Chrome 146 on Linux

View result in a separate tab

regex i

38.6M/s

RegEx lowered

27.8M/s

View exact numbers

Test name	Executions per second
✓ regex i	38,630,512 Ops/sec
RegEx lowered	27,842,870 Ops/sec

regexp with i option VS regexp with lowercase input (version: 1) Benchmark.js

test it

Comparing performance of: `RegEx lowered vs regex i`

Created: 5 months ago by: Guest

Go to the latest result

RegEx lowered

regex i

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

regexp with i option VS regexp with lowercase input (version: 1) Benchmark.js

test it

Comparing performance of: RegEx lowered vs regex i

Created: 5 months ago by: Guest

Go to the latest result

RegEx lowered

regex i

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `RegEx lowered vs regex i`