Filename Extension Checker

Easy ⏱ 8 min 85% acceptance ★★★★☆ 4.3

Write has_valid_extension(filename, extensions) that returns True if filename ends with one of the extensions in the list extensions (each like .jpg), matching case-insensitively.

Examples

Example 1

Input

filename = 'photo.JPG', extensions = ['.jpg', '.png']

Output

True

Explanation

'.JPG' matches '.jpg' case-insensitively.

Example 2

Input

filename = 'notes.txt', extensions = ['.jpg', '.png']

Output

False

Explanation

No extension in the list matches.

Constraints

extensions is a non-empty list of strings starting with a dot.

Topics

Stringsstartswith/endswith

Companies

NetflixAdobeCisco

Hints

Hint 1

Lowercase both the filename and the extension list before comparing.

Hint 2

`str.endswith()` accepts a tuple of suffixes.

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