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

brendon hanson
brendon hanson
6,191 Points
Posted by brendon hanson
brendon hanson
6,191 Points

I can't seem to find the solution

I have no clue! I tried everything I could think of

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 (index === law) {

           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>

1 Answer

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

"law" is the element, so you won't want to compare that to the index number. But instead, you could compare the index to the loop variable "i".

brendon hanson
brendon hanson
6,191 Points
brendon hanson
brendon hanson
6,191 Points

I marked the remove button solved. I also can't find the best answer button on the game one

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

That game question is in the "General Discussion" category and those don't have up/down voting or "best answer". You'd have to change the category (CSS, HTML, JavaScript, etc) to be able to select a "best answer".

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

Doesn't the hint in the original answer help?