Adds a comma to a JSON text.
JSONPUTCOMMA(p,l)
JSONPUTCOMMA writes a comma (,) to the first position in the buffer if the length of the buffer is greater than 0. If successful, it returns 1; otherwise zero is returned indicating there was no space in the buffer
Assuming buffer length is at least 1, Bytes = jsonputcomma(p,l); will cause the buffer to contain a comma (,) in position 1.
None.