Skip to main content

isOpera()

true when the current environment is Opera — Presto-era or Chromium-era, desktop or mobile.

Signature(options?: DetectOptions) => boolean
MatchesOpera/, OPR/, window.opera, window.opr

Matches​

  • Opera/ UA token (Presto, pre-2013).
  • OPR/ UA token (Chromium-Opera, 2013+).
  • window.opera or window.opr global (UA-spoof backstop).

Example​

import { isOpera } from 'get-browser';

if (isOpera()) {
  // Opera-specific shim
}

Opera Mini​

Opera Mini renders pages through Opera's proxy servers and historically lacks JavaScript features common to modern browsers. The UA contains both Opera Mini/ and the Presto Opera/ token, so isOpera() returns true.

isOpera({
  userAgent: 'Opera/9.80 (Android; Opera Mini/65.2.2254/197.91; U; en) Presto/2.12.423',
}); // → true

See also​