JavaScript DOM Scripting By Example Editing and Filtering Names Fix DOM Manipulation Code

MOISE MBAKOP NOUKEU
MOISE MBAKOP NOUKEU
Front End Web Development Techdegree Student 11,807 Points
Posted by MOISE MBAKOP NOUKEU
MOISE MBAKOP NOUKEU
Front End Web Development Techdegree Student 11,807 Points

hello guys , i have a problem with the condition that can make this code run , can i get some help ?

const laws = document.getElementsByTagName('li'); const indexText = document.getElementById('boldIndex'); const button = document.getElementById('embolden');

button.addEventListener('click', (e) => { const index = parseInt(indexText.value, 10);

for (let i = 0; i < laws.length; i += 1) {
   let law = laws[i];

   // replace 'false' with a correct test condition on the line below
   if (false) {

       law.style.fontWeight = 'bold';
   } else {
       law.style.fontWeight = 'normal';
   }
}

});

app.js 
const laws = document.getElementsByTagName('li');
const indexText = document.getElementById('boldIndex');
const button = document.getElementById('embolden');

button.addEventListener('click', (e) => {
    const index = parseInt(indexText.value, 10);

    for (let i = 0; i < laws.length; i += 1) {
       let law = laws[i];

       // replace 'false' with a correct test condition on the line below
       if (false) {

           law.style.fontWeight = 'bold';
       } else {
           law.style.fontWeight = 'normal';
       }
    }
});
index.html 
<!DOCTYPE html>
<html>
<head>
  <title>Newton's Laws</title>
</head>
<body>
  <h1>Newton's Laws of Motion</h1>
  <ul>
    <li>An object in motion tends to stay in motion, unless acted on by an outside force.</li>
    <li>Acceleration is dependent on the forces acting upon an object and the mass of the object.</li>
    <li>For every action, there is an equal and opposite reaction.</li>
  </ul>
  <input type="text" id="boldIndex">
  <button id="embolden">Embolden</button>
  <script src="app.js"></script>
</body>
</html>

2 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,287 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,287 Points

The challenge states: We want to be able to enter a 0, 1 or 2 in the text field to embolden the list item with the corresponding index

You are looping through the list item indexes with i. The entered value is provided as index. Where these two match is the condition you need.

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,287 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,287 Points

law is an element. You want to match it's index i