json.encode_number_precision

The amount of significant digits returned by json.stringify when encoding numbers can be changed to balance accuracy versus performance. For data structures containing many numbers, setting json.encode_number_precision to a smaller integer, for example 3, can improve encoding performance by up to 50%. By default, Lua CJSON will output 14 significant digits when converting a number to text.

The current setting is always returned, and is only updated when an argument is provided.

json.encode_number_precision(precision: number): number

Arguments

Name	Description	Type
precision	Must be a positive integer. Default: 14.	number

Returns old_precision: number