17 lines
411 B
Markdown
17 lines
411 B
Markdown
### has_duplicates
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Checks a flat list for duplicate values. Returns True if duplicate values exist and False if values are all unique.
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This function compares the length of the list with length of the set() of the list. set() removes duplicate values from the list.
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``` python
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def has_duplicates(lst):
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return len(lst) != len(set(lst))
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```
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``` python
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x = [1,2,3,4,5,5]
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has_duplicates(x) # result
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True
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```
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