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js eventlistener to add and remove stylings

By Tame ToadTame Toad on Apr 08, 2020
const form = document.querySelector('form');
const fname = document.getElementById('fname');
const lname = document.getElementById('lname');
const para = document.querySelector('p');

form.onsubmit = function(e) {
  if (fname.value === '' || lname.value === '') {
    e.preventDefault();
    para.textContent = 'You need to fill in both names!';
  }
}

Source: developer.mozilla.org

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