Hands-On Design Patterns and Best Practices with Julia

Example 1 – SASLib.jl package

In the SASLib.jl package, most constants are defined in the constants.jl file located at https://github.com/tk3369/SASLib.jl/blob/master/src/constants.jl.

Here's a fragment of the code:

# default settingsconst default_chunk_size = 0const default_verbose_level = 1 const magic = [         b"\x00\x00\x00\x00\x00\x00\x00\x00" ;         b"\x00\x00\x00\x00\xc2\xea\x81\x60" ;         b"\xb3\x14\x11\xcf\xbd\x92\x08\x00" ;         b"\x09\xc7\x31\x8c\x18\x1f\x10\x11" ]const align_1_checker_value = b"3"const align_1_offset = 32const align_1_length = 1const align_1_value = 4

Using these constants allows the file-reading functions to perform well.