myknbani

Benefits of pure functions

1. Easier to reason about

   • a pure function tells everything you need to know about the function. No hidden I/O, no external variables modified, no instance or even global variables to hunt down.

2. Easier to test

   • since the same input(s) always return the same output(s), they're easy to test. Provide the input and expected output. Simple! No need for setup, teardown, or mocking.

myknbani

myknbani

+ verbose=on
+ shift
+ [[ -n '' ]]
+ get_distro
+ get_bold
+ case "$ascii_bold" in
+ ascii_bold='\033[1m'
+ case "$bold" in
+ bold='\033[1m'
+ get_distro_colors