JS course. Manipulation of HTML elements

<p>One of JavaScript&#39;s most unique and useful features is its ability to manipulate the DOM. But what is the DOM and how can we change it? Let&#39;s get right to the point...</p> <p>Course points:</p> <p>What is the DOM of a web page?</p> <p>What is the difference between a node and an element?</p> <p>How to select a specific node using selectors?</p> <p>What are the basic methods for finding / adding / deleting and modifying DOM nodes?</p> <p>What is the difference between a NodeList and an array with nodes?</p> <p>How do events (or events) and event handlers (or listeners) work? How do you use them in your code?</p> <p>How does &quot;popup&quot; work?</p> <p>DOM - Document Object Model</p> <p>The DOM (or Document Object Model) is a tree-like representation of the content of a web page. The DOM is a tree of &quot;nodes&quot; with different relationships to each other based on their location in an HTML document.</p> <p>&nbsp;</p>