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

Bartlomiej Figatowski
Bartlomiej Figatowski
5,843 Points

Hello, I noticed that when I press the button, I can add empty li.

Hello, I noticed that when I press the button, I can add empty li. This is my solution.

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

  if (addItemInput.value === "") {
    addItemInput.value = "";
  } Else {
   ul.appendChild (li);
   addItemInput.value = "";
  }

});

1 Answer

Tibor Ruzinyi
Tibor Ruzinyi
17,968 Points

Hi try to alert the user when he is appending an empy string like this

ButtonAddNewItem.addEventListener('click',() => {
if(inputNewItem.value === ""){
alert('Please add a value to the input field');
}else{
let li = document.createElement('li');
li.textContent = inputNewItem.value;
console.log(li);
let ul = document.querySelector('ul');
console.log(ul);
ul.appendChild(li);
inputNewItem.value = "";
  }

})

``