Sort Lines A→Z Sort lines of text alphabetically from A to Z.

The tool's sorting mechanism relies on JavaScript's Array.sort() method, which implements a stable sorting algorithm to ensure that equal elements maintain their original relative order. Under the hood, it uses the String.localeCompare() method for locale-aware alphabetical ordering, allowing it to handle international characters correctly and sort accented characters in their expected positions. When case-insensitive mode is enabled, both strings are converted to lowercase using the toLowerCase() method before comparison, ensuring that the sorting is not affected by differences in capitalization. The use of React's useState hook allows the tool to store the state of the case-sensitive checkbox and update the sorting behavior accordingly.

The onProcess function, which is wrapped in React's useCallback hook to prevent unnecessary re-renders, takes an input string, splits it into lines using the split() method with a newline character ('\n') as the separator, and then sorts the resulting array of lines. The sorted lines are then joined back together into a single string using the join() method with a newline character ('\n') as the separator. This process has a time complexity of O(n log n), where n is the number of lines, making it efficient for sorting large amounts of text data. The tool's implementation does not rely on any external libraries, instead utilizing built-in JavaScript methods and React hooks to provide a lightweight and efficient solution for sorting text lines alphabetically.