[Javascript] lodash: memoize() to improve the profermence

Link: https://lodash.com/docs#memoize

Example:

.service('UserPresenter', function(UserConstants){

  var typeFromId = _.memoize(function(typeId){

    var obj = _.findWhere(UserConstants.types, { value: typeId});

    return obj ? obj.display : '';

  });

  return {

    fullName: function(user){

      return user.firstName + ' ' + user.lastName;

    },

    type: function(user){

      return typeFromId(user.typeId);

    }

  };

})

It is useful when you want to find something like userId, then you can use memoize() to cache the result.