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

title, tags

title	tags
function_name	utility,intermediate

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.

Return a lambda function that takes an object and applies the predicate function, fn to the specified property.

def check_prop(fn, prop):
  return lambda obj: fn(obj[prop])

check_age = check_prop(lambda x: x >= 18, 'age')
user = {
  'name': 'Mark',
  'age': 18
}

check_age(user) # True