Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
Feature Requests
FAQ
Register
Log In
Run results for:
RegExp constructor vs literal using exec
Testing performance when using a new RegExp object vs a literal regex with exec method
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=619804" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0
Browser:
Chrome 141
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
11 months ago
Benchmark engine:
Benchmark.js
new RegExp()
16.8M/s
Literal
16.7M/s
View exact numbers
Test name
Executions per second
✓
new RegExp()
16,826,312 Ops/sec
Literal
16,741,214 Ops/sec
Script Preparation code:
var reConstructor = new RegExp('^[0-9a-fA-F]{24}$') var reLiteral = /^[0-9a-fA-F]{24}$/
Tests:
new RegExp()
reConstructor.exec('132abc67219f019afe12901a')
Literal
reLiteral.exec('132abc67219f019afe12901a')