Text Case Conversion in React – Practical Guide

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1Simple Utility Function

export const toTitleCase = (str) => str.replace(/\b\w+/g, w => w.charAt(0).toUpperCase() + w.slice(1).toLowerCase());

2Custom useCaseConverter Hook

Use useState to hold text and expose a convert function. Apply conversion on button click, not on every keystroke, for performance.

3Displaying Case with CSS

For purely visual changes, use style={{ textTransform: "uppercase" }} or Tailwind's uppercase/lowercase/capitalize utilities.