Use Queryselectorall() To Select Second Element Of The List

Recently I am starting to learn HTML and JS. When I am leaning the document.querySelectorAll() API, I saw it can use document.querySelectorAll('#example-container li:first-child')

Solution 1:

Since you are asking what you can do to select the second or third element using query selectors, like document.querySelectorAll('#example-container li:second-child'), I am going to tell you how to select them with both css selectors and document.querySelectorAll().

You could use:

const el = document.querySelectorAll('#example-container li')[1];

to select the second element in the list. And this is probably the preferred way to do it in JavaScript.

But css has something called :nth-child() which allows you to choose a specific child in the list. In JS you could do something like:

const el = document.querySelector('#example-container li:nth-child(2)');

to select the second list item. Notice that you do not need the querySelectorAll() method.

I hope that helps a bit.

Solution 2:

document.querySelectorAll('#example-container li') return a collection with all li nodes in example-container.

Its like array, so you can iterate it.

document.querySelectorAll('#example-container li')[index]

console.log(document.querySelectorAll('#example-container li')[1])
//its second

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