TOTAL IDEA :
1 - Font Size Change
2 - Set Automatic Color Syntax According to Commands (Like Notepad++)
3 - Add C++, Python , JavaScript , ... and more
4 - disable problem always set "Autorun on"
5 - Security Type : Public , Links , Private , Passworded
6 - Graph Output like Draw line.....

I get an error when I try to add a reference to System.Data.Entity.Design.PluralizationServices.
'The type of namespace name 'Design' does not exist in the namespace 'System.Data.Entity'

When try to add nuget package System.Text.Encoding, keep receive error in browser console: common:Uncaught Error:

Uncaught Error: Incorrect version name

at Object.n.addPackage (common:1)

at HTMLAnchorElement.<anonymous> (common:1)

at HTMLBodyElement.dispatch (jquery:1)

at HTMLBodyElement.y.handle (jquery:1)

Add login with Microsoft account

F# is broken

Is GC.Collect() implemented? With the 10-MB memory limit. A loop of 75k calls to MD5 ComputeHash runs out of memory. I cannot find a way to recycle memory.

https://dotnetfiddle.net/IjZfxF

Such as controller or class or new .cHTML ...

I have added Automapper v4.2.1 to create some snippets and getting the below error.
Run-time exception (line -1): Could not load type 'AutoMapper.MapperConfiguration' from assembly 'AutoMapper, Version=3.2.1.0, Culture=neutral, PublicKeyToken=be96cd2c38ef1005'.

It looks like that you need to add an assembly redirect field in config to map to take the version added.

Please refer the below fiddle for more
https://dotnetfiddle.net/Widget/fX0mdq

See this example: https://dotnetfiddle.net/nGSHTF

Typing return at the end of line 7 creates a new line with the wrong indentation. Adding spaces around the equals sign on line 8 causes the line to jump to the wrong indentation level.

This seems to be related to the code on line 7 which splits a string into an array of integers.