DOM
The DOM is the browser's live, in memory tree of the elements on a page.
Definition
The DOM is the browser's live, in memory tree of the elements on a page. JavaScript reads and changes it to update what people see.
Use case
The inspector in your browser's developer tools shows the DOM. It is the quickest way to see why a layout looks the way it does.
Related terms
Documentation
Document Object Model (DOM)
Explains the tree of nodes and how scripts connect to it.