List all aliases available in fish/bash shell

Question

Is there a way to list all aliases, something like:

$ ls-aliases
.. \"cd ..\"
la \"ls -Gla\"
gs \"git stash\"
etc...

Also is it possible to add

Answer 1

Fish:

⏵ functions
abbr, ack, acs, alias, calc, cd…

⏵ functions ls
function ls
    command ls -A -x --si --color --classify --group-directories-first $argv;
end