nextSibling

NextSibling is a property of a node in the Document Object Model (DOM). It returns the node that immediately follows the current node within the same parent node, or null if there is no following node. The value can be any type of Node, including element nodes, text nodes, or comment nodes.

Because nextSibling may return text or comment nodes, it is not guaranteed to reference an element. If you specifically need the next element, use nextElementSibling, which skips non-element nodes. The counterpart to nextSibling is previousSibling, which returns the node immediately preceding the current one within the same parent.

Usage in code is straightforward: access it as someNode.nextSibling. It is read-only in practice, meaning you cannot assign a new value to nextSibling. To modify the DOM structure, use other methods such as insertBefore, removeChild, or replaceChild relative to the parent node to alter the sequence of children.

Notes and context: NextSibling is part of the DOM Level 1 specification and is broadly supported across modern browsers. When working with HTML, whitespace between elements can create text nodes that appear as nextSibling nodes. If your goal is to traverse or manipulate element nodes specifically, consider using nextElementSibling and related element-only traversal approaches.