Reverse Strings for Coding Practice
Verify your string reversal algorithms and test edge cases with emoji, Unicode, and multi-byte characters.
Coding tips
String reversal is a classic coding interview question. Test your implementation against this tool's output — it correctly handles Unicode and emoji.
A common bug: reversing bytes instead of characters. "hello 😊" reversed should be "😊 olleh", not garbled emoji. This tool uses code points correctly.
"Flip Lines" mode reverses each line independently — useful for testing multi-line string handling and line-by-line processing algorithms.
Test with edge cases: empty string, single character, palindrome, emoji, accented characters. Verify your algorithm handles all of them.
工作原理
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