30-seconds-of-code/snippets/is_empty.md

title, tags, author, cover, firstSeen

title	tags	author	cover	firstSeen
Collection is empty	list,dictionary,string	chalarangelo	blog_images/salad-1.jpg	2023-01-12T05:00:00-04:00

Checks if the a value is an empty sequence or collection.

• Use not to test the truth value of the provided sequence or collection.

def is_empty(val):
  return not val

is_empty([]) # True
is_empty({}) # True
is_empty('') # True
is_empty(set()) # True
is_empty(range(0)) # True
is_empty([1, 2]) # False
is_empty({ 'a': 1, 'b': 2 }) # False
is_empty('text') # False
is_empty(set([1, 2])) # False
is_empty(range(2)) # False