## Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

### Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

# I can't figure out this solution.

Hey all,

I think I understand what I need to do here, but cannot figure it out. I know it has to do with whether using the user's input on the indexText element to select the 'li' position in the laws[i] array, but I can't seem to figure it out.

Thanks

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

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 ( laws[i] ) {

law.style.fontWeight = 'bold';
} else {
law.style.fontWeight = 'normal';
}
}
});
```
index.html
```<!DOCTYPE html>
<html>
<title>Newton's Laws</title>
<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>
```

Hey Tyler,

In your if statement, you want to check the input value against the loop index.

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 (i === index) {

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

});