혼자만의 개발노트

public class Person

{

    public string Name { get; set; }

    public DateTime Birthday { get; set; }

}

Person person = new Person { Name = "Bob", Birthday = new DateTime (1987, 2, 2) };

string output = Newtonsoft.Json.JsonConvert.SerializeObject (person);

Console.WriteLine (output);

Console.WriteLine();

person = Newtonsoft.Json.JsonConvert.DeserializeObject<Person> (output);

Console.WriteLine ("{0} - {1}", person.Name, person.Birthday);

string json = @"{ Name: 'Bob', HairColor: 'Brown' }";

var bob = Newtonsoft.Json.Linq.JObject.Parse (json);

Console.WriteLine ("{0} with {1} hair", (string)bob["Name"], (string)bob["HairColor"]);

var config = {

    Redis: {

        Host: 'LocalHost'

    }

}

//-------------------------------------------

var a = config.Redis;

var b = config.Chat;

console.dir(a);     // { Host: 'LocalHost' }

console.dir(b);     // undefined

//-------------------------------------------

var c = config.Redis || 'Redis';

var d = config.Chat  || 'Chat';

console.dir(c);     // { Host: 'LocalHost' }

console.dir(d);     // 'Chat'

//-------------------------------------------

var e = config.Redis && 'Redis';

var f = config.Chat  && 'Chat';

console.dir(e);     // 'Redis'

console.dir(f);     // undefined

//-------------------------------------------

var g = config.Redis && config.Redis.Host;

var h = config.Chat  && config.Chat.Port;

console.dir(g);     // 'LocalHost'

console.dir(h);     // undefined

//-------------------------------------------

var i = (config.Redis && config.Redis.Host) || 'google.com';

var j = (config.Chat  && config.Chat.Port)  || 80;

console.dir(i);     // 'LocalHost'

console.dir(j);     // 80