A primitive template/locale mini-library to populate text.
There is no plurial, grammatical management, a minimal primitive for date format, and no number/currency format management.
__._add_locale('en', {
'today' : 'Today'
});
document.body = __.populate('<h1>{{today}}</h1>');
// or, via direct set substitution rule
document.body = __.populate('<h1>{{today}}</h1>', {'{{today}}' : 'Today' });