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Justin Hicks
14,290 PointsI have question on if there is any unforeseen issue with how I did Registering Names
The way I did it differs from how it was done in the video. Is there an issue with doing it this way I don't know about?
const form = document.getElementById("registrar");
const text = form.querySelector('input');
form.addEventListener('submit', (event) => {
event.preventDefault();
let ul = document.getElementById('invitedList');
let li = document.createElement('li');
li.innerHTML = text.value;
text.value = '';
ul.appendChild(li);
});
1 Answer
Daniel Phillips
12,632 PointsBy using let instead of const you leave your code open to assigning a new object to the variables (ui and li) which may happen unintentionally at some time in the future by you or someone else maintaining your code. Once ui and li are assigned to the DOM objects, you don't intend them to be changed to some other objects, so you should use const which would cause an exception (alerting you of the problem and allowing it to be fixed before going to production) if you attempt to reassign or delete the variable. The rule of thumb is use const first and let only if you need to reassign a variable at some point (like in a for loop).