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JavaScript JavaScript and the DOM (Retiring) Traversing the DOM Sibling Traversal

Posted by Naeem Hasan
Naeem Hasan
Courses Plus Student 6,344 Points

how to solve!!

i don't understand how can i solve it...please help me

app.js 
const list = document.getElementsByTagName('ul')[0];

list.addEventListener('click', function(e) {
  if (e.target.tagName == 'BUTTON') {

  }
});
index.html 
<!DOCTYPE html>
<html>
    <head>
        <title>JavaScript and the DOM</title>
    </head>
    <link rel="stylesheet" href="style.css" />
    <body>
        <section>
            <h1>Making a Webpage Interactive</h1>
            <p>Things to Learn</p>
            <ul>
                <li><p>Element Selection</p><button>Highlight</button></li>
                <li><p>Events</p><button>Highlight</button></li>
                <li><p>Event Listening</p><button>Highlight</button></li>
                <li><p>DOM Traversal</p><button>Highlight</button></li>
            </ul>
        </section>
        <script src="app.js"></script>
    </body>
</html>
jay aljoe
jay aljoe
4,113 Points

hey Naeem, Your code is right but You're selecting the first li

<li><p>Element Selection</p><button>Highlight</button></li>

if you need to select the first button inside the li, do this

const btn = document.getElementsByTagName('button')[0];

btn.addEventListener('click', function(e) {
  if (e.target.tagName == 'BUTTON') {

  }
});

2 Answers

Otto linden
Otto linden
5,857 Points
Otto linden
Otto linden
5,857 Points

What error do you get? :)

Libor Gess
Libor Gess
6,880 Points
Libor Gess
Libor Gess
6,880 Points

Hello Naeem,

when I went through this code challenge I was also lost. You should think of e.target
The e.target 'position' the current click then just add previousSibling basically you are telling that target is the <p>something</p> element.