is_list

is_pairlist

assert_is_list

assert_is_pairlist

Lots of predicates (is_* functions) to check the state of your
variables, and assertions (assert_* functions) to throw errors if they
aren't in the right form.

Richard Cotton

assertive

Readable Check Functions to Ensure Code Integrity

is_list function

is_list: Is the input a list?

Description

Arguments