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JavaScript JavaScript and the DOM (Retiring) Making Changes to the DOM Appending Nodes

Samantha Atkinson
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Samantha Atkinson
Front End Web Development Techdegree Graduate 39,992 Points

Order of statements.

Why didn't Guil place the append statement after the statement that creates a li item and above the statement that inserts the text to the new li item?

addItemButton.addEventListener('click', () => {
   let ul = document.getElementsByTagName('ul')[0];
  let li = document.createElement('li');
   ul.appendChild(li);
  li.textContent = addItemInput.value;

}); 

ย  Above is my code. I thought it would be logical to create element, append element and then provide the text to be placed in the new li item. Is above the wrong logic? It works but I want to make sure I'm not messing up the logic part.

1 Answer

Steven Parker
Steven Parker
229,952 Points

It's not critical, but it's a good practice to completely construct a new element before adding it to the DOM. There's a slight chance of a momentary visual artifact if something is altered while it's already on the page.