Poor performance scaling in "Format JSON Object"

[James Powell]

Formating code copied from LAVA-JSON. Uses Format-into-String in a loop that is slow for very large numbers of items (tried 100,000). Could improve, perhaps with a preallocated string, or a an array of formatted strings that are concatenated at one step.

[James Powell]

Tried, but could not improve meaningfully.

See https://forums.ni.com/t5/LabVIEW/Benchmark-for-Insert-Into-Array-vs-Build-Array/td-p/2777568?profile.language=en

Compiler detects Build Array and a shift register and optimises.

[James Powell]

Resolving as no change needed.