How to loop all files in sorted order in Bash?

Question

I am looping all files in directory with following command:

for i in *.fas; do some_code; done;

However, I get order like this:

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Answer 1

for i in `ls *.fas | sort -V`; do some_code; done;

where sort -V does according to man sort a version sort - a natural sort of (version) numbers within text

The same using only ls:

for i in `ls -v *.fas`; do echo $i; done;