Clipboard

Summary

The Clipboard API (`navigator.clipboard`) lets you read from and write to the system clipboard — powering 'Copy to clipboard' buttons. Clipboard operations are permission- and security-sensitive, so production interfaces should provide clear feedback and handle browsers that deny or restrict access.

• 1Build a 'Copy code' button using `navigator.clipboard.writeText()`. Keep the first version small, then add one improvement after the core behavior works.
• 2Show a brief 'Copied!' confirmation after a successful copy. Validate your understanding by applying it in a small practical example.
• 3Learn that clipboard access requires a secure context (HTTPS) and often a user gesture.