JSON double value decimal places

[martinrobinson-2]

I’d like to control the number decimal places generated for double values in the JSON formatter. Values generated programmatically often lead to using the full 20 decimal places (e.g, 1.0500000000000000444 when I’d be happy with 1.05 for many use-cases).

I’ve attached a patch, which is what I’m using in my fork.

json-decimal-places.diff.txt (6.9 KB)

[t0m]

Added:

Breaking change (minor): DynamicObject::writeAsJSON

Change The writeAsJSON virtual method of the DynamicObject class requires an additional parameter, maximumDecimalPlaces, to specify the maximum precision of floating point numbers. Possible Issues Classes which inherit from DynamicObject and override this method will need to update their method signature. Workaround Your custom DynamicObject class can choose to ignore the additional parameter if you don’t wish to support this behaviour. Rationale When serialising the results of calculations…

JSON: Added the ability to limit the number of decimal places when serialising floating point numbers