Check Key Membership

Easy ⏱ 8 min 79% acceptance ★★★★☆ 4.3

Write a function has_sku(inventory, sku) that returns True if sku is a key in the dict inventory, and False otherwise. Use the in operator, not .keys().

Examples

Example 1

Input

has_sku({'A1': 5, 'B2': 0}, 'B2')

Output

True

Explanation

B2 is a key, even though its value is 0.

Example 2

Input

has_sku({'A1': 5}, 'C3')

Output

False

Explanation

C3 is not a key.

Constraints

Membership must check keys, not values.

Topics

Dictionariesmembership

Companies

SwiggyZomato

Hints

Hint 1

`key in some_dict` checks keys directly and is O(1) on average.

← List All Keys and Values Remove a Key Safely →

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