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Start your free trialVic Mercier
3,276 PointsI don't understand this challenge
I don't understand what I need to do
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 (indexText.value == 0 || 1 || 2) {
law.style.fontWeight = 'bold';
} else {
law.style.fontWeight = 'normal';
}
}
});
<!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
231,275 PointsYou need to replace "false
" with a comparison expression. And what you will compare is the loop index with the number that the user put in the box (which has already been conveniently converted to a value in the variable "index").
Vic Mercier
3,276 PointsI found the solution by myself ! Thank you for your help.
Vic Mercier
3,276 PointsWhat would I do if I want the li to stay "bold" once they have been
Steven Parker
231,275 PointsJust remove the "else" (lines 15 and 16) and anything made bold will stay that way when you pick another one.
Vic Mercier
3,276 PointsVic Mercier
3,276 PointsWhy if I remove the else it will stay bold?