Editing Document Object Model (section)

== Manipulating the DOM tree ==
The DOM tree can be manipulated using JavaScript or other programming languages. Common tasks include navigating the tree, adding, removing, and modifying nodes, and getting and setting the properties of nodes. The DOM API provides a set of methods and properties to perform these operations, such as <code>getElementById</code>, <code>createElement</code>, <code>appendChild</code>, and <code>innerHTML</code>.<syntaxhighlight lang="javascript">
// Create the root element
var root = document.createElement("root");

// Create a child element
var child = document.createElement("child");

// Add the child element to the root element
root.appendChild(child);

</syntaxhighlight>Another way to create a DOM structure is using the innerHTML property to insert HTML code as a string, creating the elements and children in the process. For example:<syntaxhighlight lang="javascript">
document.getElementById("root").innerHTML = "<child></child>";
</syntaxhighlight>Another method is to use a JavaScript library or framework such as [[jQuery]], [[AngularJS]], [[React (JavaScript library)|React]], [[Vue.js]], etc. These libraries provide a more convenient, eloquent and efficient way to create, manipulate and interact with the DOM.

It is also possible to create a DOM structure from an XML or JSON data, using JavaScript methods to parse the data and create the nodes accordingly.

Creating a DOM structure does not necessarily mean that it will be displayed in the web page, it only exists in memory and should be appended to the document body or a specific container to be rendered.

In summary, creating a DOM structure involves creating individual nodes and organizing them in a hierarchical structure using JavaScript or other programming languages, and it can be done using several methods depending on the use case and the developer's preference.