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<!DOCTYPE html> <html> <body> <h1>The Document Object</h1> <h2>The querySelectorAll() Method</h2> <div class="example"> A div element with class="example" </div> <div class="example"> A div element with class="example" </div> <p class="example">A p element with class="example"</p> <p>How many elements with class "example" in this document:</p> <p id="demo"></p> <script> const nodeList = document.querySelectorAll(".example"); document.getElementById("demo").innerHTML = nodeList.length; </script> </body> </html>
