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Start your free trialAakash Srivastav
Full Stack JavaScript Techdegree Student 11,638 PointsUsing parentNode to Traverse Up the DOM
Instead of moving the event listener to the ul
element from div
element , what I did was "I assined a class of remove
to every list-button" like this-
<ul >
<li>grapes <button class="remove">Remove</button></li>
<li>amethyst <button class="remove">Remove</button></li>
<li>lavender <button class="remove">Remove</button></li>
<li>plums <button class="remove">Remove</button></li>
</ul>
And then I put the condition-
if(event.target.className == "remove"){
let listItem = event.target.parentNode;
let parent = listItem.parentNode;
parent.removeChild(listItem);
}
But It didn't worked. Why this strange behaviour is going on?
2 Answers
tomd
16,701 PointsYou need something to listen to the clicks on the buttons. You need addEventListener somewhere. Here are two ways of doing it:
First: Add event listeners to each li.
let li = document.querySelectorAll('li');
for(let lis of li) {
lis.addEventListener('click', (event) => {
if(event.target.className == "remove"){
let ul = lis.parentNode;
ul.removeChild(lis);
}
});
}
Second: Select the ul and listen for clicks inside it.
let ul = document.querySelector('.main-ul');
ul.addEventListener('click', (event) => {
if(event.target.className == "remove"){
let listItem = event.target.parentNode;
let ul = listItem.parentNode;
ul.removeChild(listItem);
}
});
Dhanuka Anushanga
13,347 PointsHey @Aakash Srivastav, I think this is the solution you are looking for.
const ul = document.querySelector('ul');
ul.addEventListener('click', (event) => {
if(event.target.tagName === 'BUTTON') {
if(event.target.className === 'remove') {
const li = event.target.parentNode;
ul.removeChild(li);
}
}
});
Aakash Srivastav
Full Stack JavaScript Techdegree Student 11,638 PointsAakash Srivastav
Full Stack JavaScript Techdegree Student 11,638 PointsHey @Tom Dempster
I have added "event-listener" to the "div" with class "list". I haven't removed that .
What i am saying is instead of moving the
addEventListener
closer , I just give "classes" to the element as the problem was I was selecting the button with tagname "button" , now I will select with className , so problem should be solved.