How should I practice Uppercase-Lowercase Difference?

Start by reading the full statement, solve the visible examples, then compare the pattern against related TikTok online assessment problems in FastPrep.

Is Uppercase-Lowercase Difference associated with TikTok?

FastPrep tags this as a TikTok online assessment coding practice problem when the problem catalog has that company and stage context.

Uppercase-Lowercase Difference

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Problem statement

In a typing-practice application, user input is represented by a string typedText containing uppercase and lowercase English letters.

Return the number of uppercase letters minus the number of lowercase letters in typedText.

Function

solution(typedText: String) → int

Examples

Example 1

typedText = "CodeSignal"return = -6

There are 2 uppercase letters (C and S) and 8 lowercase letters, so the result is 2 - 8 = -6.

Example 2

typedText = "a"return = -1

There are no uppercase letters and one lowercase letter, so the result is 0 - 1 = -1.

Constraints

typedText contains only uppercase and lowercase English letters.