get browser language with jquery

something in jquery for do that bellow?

anyway i dont know this js not working :(

thanks.

var lang = (navigator.language || navigator.systemLanguage || navigator.userLanguage || 'en').substr(0, 2).toLowerCase();
if (lang == 'es') {
    console.log('espanish');
} else if (lang == 'pt-BR') {
    console.log('brasil');
} else {
    console.log('Common English text');
}