Check if the Same Case

JavaScriptHardstringsvalidation

Instructions

Create a function that returns true if an input string contains only uppercase or only lowercase letters.

sameCase("hello") ➞ true

sameCase("HELLO") ➞ true

sameCase("Hello") ➞ false

sameCase("ketcHUp") ➞ false

N/A

javascript

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⌘ ↵ to run

Walks through the solution with reasoning and edge cases.