Benchmark: slicing regex vs sticky regex

Script Preparation code:

s = ""
for (let i = 0; i < 1500; i++) {
    s += String.fromCharCode((Math.random() * (127 - 30) + 32) | 0)
}
FILTER = /\w/
R1 = /^\w\d/
R2 = /\w\d/y

Tests:

slice then regex
let count = 0 for(let i = 0; i < s.length; i++) { if (FILTER.test(s[i])) { let ss = s.slice(i,i+2) if (R1.test(ss)) { count++ } } }
sticky regex
let count = 0 for(let i = 0; i < s.length; i++) { if (FILTER.test(s[i])) { R2.lastIndex = i let m = R2.exec(s) if (m != null) { count++ } } }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
slice then regex
sticky regex

Fastest: N/A

Slowest: N/A

Latest run results:

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slicing regex vs sticky regex (version: 0)

Comparing performance of: slice then regex vs sticky regex

Created: 2 years ago by: Guest

Jump to the latest result

slice then regex

sticky regex

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results