Run results for: Performance checking the start of a string

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143.0) Gecko/20100101 Firefox/143.0

Browser: Firefox 143

Operating system: Windows

Device Platform: Desktop

Date tested: 8 months ago

startsWith

2147.2M/s

Indexed

2093.3M/s

regex

38.5M/s

View exact numbers

HTML Preparation code:

<!--your preparation HTML code goes here-->

Tests:

Indexed
const subject = '--foo'; subject[0] === '-' && subject[1] === '-' && subject.length > 2 && subject[2] !== '-';
startsWith
const subject = '--foo'; subject.startsWith('--') && subject.length > 2 && subject[2] !== '-';
regex
const subject = '--foo'; const pattern = /^--[^-]/; subject.match(pattern);