A collection of _.js mixins

__mixins.js

_.mixin({
  
  isHash: function(object) {
    return _.isObject(object) && !_.isArray(object);
  },
  
  capitalize: function(string) {
    return string.charAt(0).toUpperCase() + string.substring(1).toLowerCase();
  },
  
  deepMerge: function(hash1, hash2){
    var hash = hash1;
    _.each(hash2, function(value, key){
      if( value instanceof Object  && hash[key] instanceof Object){
        hash[key] = _.deepMerge(hash[key], value)
      } else {
        hash[key] = value;
      }
    });
    return hash;
  },
  
  nestedErrorHanler: function(obj) {
    var errorText = "";
    _.each(obj, function(error, key) {
      if(error.constructor == Object){
        errorText = errorText + _.nestedErrorHanler(error);
      } else {
        errorText = errorText + "<li>" + key.titleize() + ' - ' + error + "</li>";
      }
    });
    return errorText;
  },
})