feat(utils): add string reversal utility with TDD#17
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- Add reverseString function that reverses a string character by character - Throw on non-string input with a clear error message - Add three unit tests covering normal reversal, empty string, and invalid input Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Ignore node_modules, dist, .env files, logs, .DS_Store, and coverage - Add clone, install, and test instructions to README Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
reverseStringfunction insrc/utils/reverseString.jsthat reverses a string character by characterTest plan
should reverse a regular string—'hello'→'olleh'should return an empty string when given an empty string—''→''should throw an error when given a non-string input—123throws'Input must be a string'jest🤖 Generated with [Claude Code]