Review Comments

The provided JavaScript code is a function to check if a given text is a palindrome or not. It's generally well-written, but there are a few improvements that can be made for better readability and performance. Here are the improvements:

1. Use `trim()` to remove any leading or trailing spaces from the input text.
2. Use `const` instead of `let` for variables that are not reassigned.
3. Use meaningful variable names.
4. Use `===` instead of `==` for comparison to avoid type coercion.
5. Use `textContent` instead of `innerText` as it has better performance.
6. Use `try...catch` to handle any potential errors during execution.
7. Use `addEventListener` to handle button click event.

Here is the improved code: