C#•2y ago

❔ CS version of python dictionary

Is there a good alternative to python's dictionaries? As in json "objects".

16 Replies

Thinker•2y ago

System.Collections.Generic.Dictionary

PillowOP•2y ago

how do I use that?

MODiX•2y ago

thinker227#5176

REPL Result: Success

Dictionary<string, int> ages = new();
ages.Add("Rick Astley", 56);
ages.Add("Michael Stevens", 36);

Console.WriteLine(ages["Rick Astley"]);

Dictionary<string, int> ages = new();
ages.Add("Rick Astley", 56);
ages.Add("Michael Stevens", 36);

Console.WriteLine(ages["Rick Astley"]);

Console Output

Compile: 556.128ms | Execution: 32.909ms | React with ❌ to remove this embed.

PillowOP•2y ago

can i set a {"x","y"} to a field using that?

Thinker•2y ago

wdym?

PillowOP•2y ago

something like

"Rick_Astley":{
  "job":"Musician",
  "age":123
},
"John_Smith":{
  "job":"Office worker",
  "age":44
}

"Rick_Astley":{
  "job":"Musician",
  "age":123
},
"John_Smith":{
  "job":"Office worker",
  "age":44
}

Thinker•2y ago

Ah, yeah. In that case you're gonna have to use JsonSerializer. First you'll have to create a class representing a person which you can deserialize the JSON into, in this case containing a Job and Age property.

PillowOP•2y ago

ah looks like microsoft has a good page on it, thank you for your help!

MODiX•2y ago

thinker227#5176

REPL Result: Success

using System.Text.Json;

class Person
{
    public string Job { get; set; }
    public int Age { get; set; }
}

string json = """
{
  "Rick Astley":{
    "job":"Musician",
    "age":123
  },
  "John Smith":{
    "job":"Office worker",
    "age":44
  }
}
""";

var people = JsonSerializer.Deserialize<Dictionary<string, Person>>(json, new JsonSerializerOptions() { PropertyNameCaseInsensitive = true });
people["Rick Astley"]

using System.Text.Json;

class Person
{
    public string Job { get; set; }
    public int Age { get; set; }
}

string json = """
{
  "Rick Astley":{
    "job":"Musician",
    "age":123
  },
  "John Smith":{
    "job":"Office worker",
    "age":44
  }
}
""";

var people = JsonSerializer.Deserialize<Dictionary<string, Person>>(json, new JsonSerializerOptions() { PropertyNameCaseInsensitive = true });
people["Rick Astley"]

Result: Person

{
  "job": "Musician",
  "age": 123
}

{
  "job": "Musician",
  "age": 123
}

Compile: 567.269ms | Execution: 64.650ms | React with ❌ to remove this embed.

Thinker•2y ago

yeah the MS docs are really good

PillowOP•2y ago

(do i have to close this now or how does it work here?)

Thinker•2y ago

Yeah you can close it using /close if you want (although idk what cathei is writing)

cathei•2y ago

Dictionary<string, Person> people = new()
{
  { "Rick_Astley", new() { Job = "Musician", Age = 123 } },
  { "John_Smith", new() { Job = "Office worker", Age = 44 } }
}

Dictionary<string, Person> people = new()
{
  { "Rick_Astley", new() { Job = "Musician", Age = 123 } },
  { "John_Smith", new() { Job = "Office worker", Age = 44 } }
}

This would be equivalent syntax in C# (If you don't need to use Json)

PillowOP•2y ago

ooo fancy, thank you!

Angius•2y ago

Dictionary<string, Person> people = new()
{
  ["Rick_Astley"] = new() { Job = "Musician", Age = 123 } },
  ["John_Smith"] = new() { Job = "Office worker", Age = 44 } }
}

Dictionary<string, Person> people = new()
{
  ["Rick_Astley"] = new() { Job = "Musician", Age = 123 } },
  ["John_Smith"] = new() { Job = "Office worker", Age = 44 } }
}

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ CS version of python dictionary