Humanize constant filter for AngularJs

I had the need to humanize constants coming from an API, so I made this very simple filter.

i.e: "MY_CONSTANT" => "My constant"

angular.module('app').filter('humanizeConstant', function(){
  return function(text) {
    if(text) { 
      var string = text.split("_").join(" ").toLowerCase();
      string = string.charAt(0).toUpperCase() + string.slice(1); 
      return string
    };
  };
});