The Importance of UI Testing and Debugging

 The Importance of UI Testing and Debugging

Testing and debugging are critical steps in the UI development process. In this post, we'll discuss the importance of UI testing and debugging, including some common UI bugs and how to fix them, tools and techniques for testing your UI, and best practices for ensuring your UI is functional and bug-free.

Code Example:

less

// JavaScript for a UI form validation

const form = document.querySelector('form');

const input = document.querySelector('input');

const error = document.querySelector('.error');

form.addEventListener('submit', (event) => {

  if (input.value === '') {

    event.preventDefault();

    error.innerHTML = 'Please enter a valid email address.';

    error.classList.add('visible');

  }

});

// CSS for the error message

.error {

  color: red;

  font-size: 14px;

  margin-top: 5px;

  visibility: hidden;

}

.visible {

  visibility: visible;

}