Difference among other implementations

[geskill]

Right now, there are several JSON implementations available. Whats the difference of this among others? Is it speed, scalability or a low footprint?

• JSON delphi library uLkJSON.pas
• Integrated System.Json
• ISuperObject implementations hgourvest/superobject or onryldz/x-superobject

[ahausladen]

From the readme.md:

Features

• Fast dual JSON parser for parsing UTF8 and UTF16 without conversion
• Automatic creation of arrays and objects
• Easy access mode with implicit operators
• Compact and formatted output modes
• Variants support
• Null can be auto-typecasted to a value type if JsonSerializationConfig.NullConvertsToValueTypes is set to True
• Win32, Win64 and ARM Android support (MacOS and iOS may work)