How to detect Opera browser via js?

Question

JavaScript

Greetings. Tell me, is it possible to find out the name of the browser other than through the user-agent? The problem is that opera and chrome are on the same engine, and they have the same user agents. Thank you!

Answer 1

// from vk source
var _ua = window.navigator.userAgent;
var browser = {
  version: (_ua.match( /.+(?:me|ox|on|rv|it|era|opr|ie)[\/: ]([\d.]+)/ ) || [0,'0'])[1],
  opera: (/opera/i.test(_ua) || /opr/i.test(_ua)),
  msie: (/msie/i.test(_ua) && !/opera/i.test(_ua) || /trident\//i.test(_ua)),
  msie6: (/msie 6/i.test(_ua) && !/opera/i.test(_ua)),
  msie7: (/msie 7/i.test(_ua) && !/opera/i.test(_ua)),
  msie8: (/msie 8/i.test(_ua) && !/opera/i.test(_ua)),
  msie9: (/msie 9/i.test(_ua) && !/opera/i.test(_ua)),
  mozilla: /firefox/i.test(_ua),
  chrome: /chrome/i.test(_ua),
  safari: (!(/chrome/i.test(_ua)) && /webkit|safari|khtml/i.test(_ua)),
  iphone: /iphone/i.test(_ua),
  ipod: /ipod/i.test(_ua),
  iphone4: /iphone.*OS 4/i.test(_ua),
  ipod4: /ipod.*OS 4/i.test(_ua),
  ipad: /ipad/i.test(_ua),
  android: /android/i.test(_ua),
  bada: /bada/i.test(_ua),
  mobile: /iphone|ipod|ipad|opera mini|opera mobi|iemobile|android/i.test(_ua),
  msie_mobile: /iemobile/i.test(_ua),
  safari_mobile: /iphone|ipod|ipad/i.test(_ua),
  opera_mobile: /opera mini|opera mobi/i.test(_ua),
  opera_mini: /opera mini/i.test(_ua),
  mac: /mac/i.test(_ua),
  search_bot: /(yandex|google|stackrambler|aport|slurp|msnbot|bingbot|twitterbot|ia_archiver|facebookexternalhit)/i.test(_ua)
};

Answer 2

There used to be a window.opera property.