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Zero pad a number
Given the number 42, pad it to 8 characters like 00000042
erlang
Formatted = io_lib:format("~8..0B", [42]),
io:format("~8..0B~n", [42]).
Right Space pad a number
Given the number 1024 right pad it to 6 characters
"1024 "
erlang
Formatted = io_lib:format("~-6B", [1024]),
io:format("~-6B~n", [1024]).
Format a decimal number
Format the number 7/8 as a decimal with 2 places: 0.88
erlang
Formatted = io_lib:format("~.2f", [7/8]),
io:format("~.2f~n", [7/8]).
Left Space pad a number
Given the number 73 left pad it to 10 characters
" 73"
erlang
Formatted = io_lib:format("~10B", [73]),
io:format("~10B~n", [73]).
