Best way to determine user's locale within browser

Question

I have a website (Flash) localized into a dozen of languages and I want to auto-define a default value depending on the user\'s browser settings in order to minimize the ste

Answer 1

On Chrome and Firefox 32+, navigator.languages contains an array of locales in order of user preference, and is more accurate than navigator.language, however to make it backwards-compatible (Tested Chrome / IE / Firefox / Safari), then use this:

function getLang()
{
 if (navigator.languages != undefined) 
 return navigator.languages[0]; 
 else 
 return navigator.language;
}