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Issue #19

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Hodza Alban
2018-02-28 08:39:07 +01:00
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parent 169057b6b7
commit 33c653c36b
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snippets/difference.md
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@ -1,14 +1,13 @@
### difference ### difference
Returns the difference between two arrays. Returns the difference between two iterables.
Create a `set` from `b`, then use list comprehension to only keep values not contained in `b` Use list comprehension to only keep values not contained in `b`
```python ```python
def difference(a, b): def difference(a, b):
b = set(b)    return [item for item in a if item not in b]
return [item for item in a if item not in b]
``` ```
``` python ``` python
difference([1, 2, 3], [1, 2, 4]) # [3] difference([1, 2, 3], [1, 2, 4]) # [3]
``` ```