Run results for: Regex vs String comparison

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 8 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);