Run results for: Regex vs String comparison

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36 Edg/125.0.0.0

Browser: Chrome 125

Operating system: Windows

Device Platform: Desktop

Date tested: 6 months ago

Tests:

Using string comparison
const contentType = 'application/json'; const match = contentType === 'application/json' || contentType === 'application/json; charset=utf-8'; console.log(match);
Using regex
const RE_CONTENT_TYPE_JSON = new RegExp('^application/json(; charset=utf-8)?$', 'i'); const contentType = 'application/json'; const match = RE_CONTENT_TYPE_JSON.test(contentType); console.log(match);
Using array includes
const contentType = 'application/json'; const match = ['application/json', 'application/json; charset=utf-8'].includes(contentType); console.log(match);