Loop through a comma-separated shell variable

Question

Suppose I have a Unix shell variable as below

variable=abc,def,ghij

I want to extract all the values (abc, def an

Answer 1

Here is an alternative tr based solution that doesn't use echo, expressed as a one-liner.

for v in $(tr ',' '\n' <<< "$var") ; do something_with "$v" ; done

It feels tidier without echo but that is just my personal preference.