32 lines
651 B
Markdown
32 lines
651 B
Markdown
---
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title: Collection is empty
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type: snippet
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language: python
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tags: [list,dictionary,string]
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author: chalarangelo
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cover: salad-1
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dateModified: 2023-01-12T05:00:00-04:00
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---
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Checks if the a value is an empty sequence or collection.
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- Use `not` to test the truth value of the provided sequence or collection.
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```py
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def is_empty(val):
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return not val
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```
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```py
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is_empty([]) # True
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is_empty({}) # True
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is_empty('') # True
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is_empty(set()) # True
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is_empty(range(0)) # True
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is_empty([1, 2]) # False
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is_empty({ 'a': 1, 'b': 2 }) # False
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is_empty('text') # False
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is_empty(set([1, 2])) # False
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is_empty(range(2)) # False
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```
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