Question

Create a page having an article inside an article element, with enough content to make it look realistic. Then, when a button reading "Insert page heading" is clicked, use confirm to get a heading type for the page. If the user cancels, display an alert "This page will have no heading," Otherwise, check to make sure the entered value is one of h1, h2, or h3. If it is not, display an alert "Not a valid heading type."

Answer 1

In this question, we need to create a web page with an article element and a button. When the button is clicked, the user is prompted to enter a heading type. If the user cancels, an alert is displayed, otherwise, the entered value is checked and an alert is shown if it's not valid.

Step-by-step explanation:

This is the main article heading

This is the content of the article.

Insert page heading

function insertHeading() {
var headingType = window.confirm("Please select a heading type (h1, h2, or h3)");
if (headingType === null) {
window.alert("This page will have no heading");
} else if (headingType !== "h1" && headingType !== "h2" && headingType !== "h3") {
window.alert("Not a valid heading type");
}
}