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@ -818,7 +818,7 @@ sentences %>%
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1. Replace all forward slashes in a string with backslashes.
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1. Replace all forward slashes in a string with backslashes.
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2. Implement a simple version of `str_to_lower()` using `replace_all()`.
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2. Implement a simple version of `str_to_lower()` using `str_replace_all()`.
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3. Switch the first and last letters in `words`.
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3. Switch the first and last letters in `words`.
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Which of those strings are still words?
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Which of those strings are still words?
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