21 lines
553 B
Markdown
21 lines
553 B
Markdown
---
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title: check_prop
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tags: function,intermediate
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---
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Given a predicate function, `fn`, and a `prop` string, this curried function will then take an object to inspect by calling the property and passing it to the predicate.
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Return a `lambda` function that takes an object and applies the predicate function, `fn` to the specified property.
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```py
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def check_prop(fn, prop):
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return lambda obj: fn(obj[prop])
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```
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```py
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check_age = check_prop(lambda x: x >= 18, 'age')
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user = {'name': 'Mark', 'age': 18}
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check_age(user) # True
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```
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