Twitter bootstrap typeahead multiple values?

Edit There already was a pull about that : https://github.com/twitter/bootstrap/pull/2007

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You can approach the desired behavior by using a proxy for the typeahead : Demo (jsfiddle)

var $myTextarea = $('#myTextarea');

$('.typeahead').typeahead({
    source: source,
    updater: function(item) {
        $myTextarea.append(item, ' ');
        return '';
    }
});

I think the updater method is meant for this kind of thing, you just return what will be displayed.

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Or if you really want everything to be in the same input element, you would have to override more methods so that it only matches the currently-typed element : Demo (jsfiddle)

function extractor(query) {
    var result = /([^,]+)$/.exec(query);
    if(result && result[1])
        return result[1].trim();
    return '';
}

$('.typeahead').typeahead({
    source: source,
    updater: function(item) {
        return this.$element.val().replace(/[^,]*$/,'')+item+',';
    },
    matcher: function (item) {
      var tquery = extractor(this.query);
      if(!tquery) return false;
      return ~item.toLowerCase().indexOf(tquery.toLowerCase())
    },
    highlighter: function (item) {
      var query = extractor(this.query).replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, '\\$&')
      return item.replace(new RegExp('(' + query + ')', 'ig'), function ($1, match) {
        return '<strong>' + match + '</strong>'
      })
    }
});

This one is not idiot proof, because you have to type at the end, after the special character.