has_cols

has_rows

assert_has_cols

assert_has_rows

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

has_cols function

State of Data and AI Literacy Report 2025

has_cols: Does the input have rows/columns?

Description

Arguments