Count ASCII capitals
Difficulty: Easy
Return how many characters are ASCII uppercase letters A through Z. Ignore lowercase letters, punctuation, digits, emoji, and non-ASCII uppercase letters.
Examples
""0"JS and HTML"6"abc"0Constraints
0–10,000 UTF-16 code units. Do not use locale-dependent casing to decide whether a character counts.
Review lesson: Slicing, searching, and replacementA little nudge
Reveal one hint at a time. Give yourself a moment to try it.
Worked solution
Try your own approach first, then compare the reasoning.
Complexity
Ready when you are
Write your solution, then run it against the practice tests.
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