node.nextSibling returns the next node in the parent’s childNodes list, or null if none (MDN). It can be an element, text, comment, or other node type.
Status: Baseline Widely available (since July 2015) — not Deprecated, Experimental, or Non-standard. For element-only walks, prefer nextElementSibling.
Remember
node.nextSibling
→ next node in parent.childNodes
→ or null (last child / no parent)
Watch: pretty HTML often inserts #text between tags
Prefer: element.nextElementSibling for UI tags
Opposite: node.previousSibling
Read the next sibling, guard against null, and choose element vs any-node access.
Select a starting node (often an element).
Read node.nextSibling.
If the result may be null, check before using it.
If you only want a tag, use nextElementSibling instead.
Piece
Required?
Role
node
Yes
Starting DOM node
Return
—
Next sibling Node, or null
Null check
Usually
Avoid reading properties on null
Pseudocode
Pseudocode
next = node.nextSibling
if next is null:
// last child — stop
else:
// may be ELEMENT, #text, comment, …
use next.nodeName / next.id carefully
// element-only (skip whitespace):
el = element.nextElementSibling
// walk forward:
while next:
process(next)
next = next.nextSibling
Reference
Cheat Sheet
Keep these facts handy when walking sibling nodes.
Topic
Detail
Syntax
node.nextSibling
Returns
Node or null
Mutates?
No — read-only
Whitespace
Often #text between pretty-printed tags
vs element
nextElementSibling skips text / comments
Opposite
previousSibling
Standard
Baseline Widely available (since July 2015)
Try it
Live Preview
Pretty-printed siblings below. Compare nextSibling with nextElementSibling, or walk forward.
Demo nodes
A
B
C
Starts from #ns-a. Indented markup creates #text between the divs.
Result
Choose an action, then Run…
Code
JavaScript Examples
Short, copy-ready snippets based on MDN Node.nextSibling. Use Try It Yourself for a live editor.
Example 1 — Compact Markup → Element
No whitespace between tags: nextSibling is the next element.
Place tags back-to-back. No newline between closing and opening tags.
Read nextSibling. The next child is the element you expect.
Check nodeName."DIV" confirms an element node.
Read id. Elements have id; text nodes do not.
Example 2 — Whitespace Makes #text
Pretty markup: a newline between two divs makes nextSibling a text node.
JavaScript
// <div id="div-1">Here is div-1</div>
// <div id="div-2">Here is div-2</div>
const d1 = document.getElementById("div-1");
console.log(d1.nextSibling.nodeName); // often "#text"
// Skip the text node to reach the next element:
console.log(d1.nextSibling.nextSibling.id); // "div-2"
nextSibling sees every node. Including text and comments.
nextElementSibling skips them. Returns the next element or null.
Same start node. Different APIs, different answers on pretty HTML.
UI default: prefer nextElementSibling for tags.
Example 4 — Last Sibling Returns null
Always guard before reading properties on nextSibling.
JavaScript
const last = document.getElementById("div-2");
console.log(last.nextSibling); // null (if it is the last child)
if (last.nextSibling) {
console.log(last.nextSibling.nodeName);
} else {
console.log("No next sibling");
}
Optional chaining works too:last.nextSibling?.nodeName.
Same for detached nodes with no parent — also null.
Example 5 — Walk Following Siblings (MDN-style)
Loop with nextSibling to list every node after a starting element.
JavaScript
let el = document.getElementById("div-1").nextSibling;
let i = 1;
let result = "Siblings of div-1:\n";
while (el) {
result += `${i}. ${el.nodeName}\n`;
el = el.nextSibling;
i++;
}
console.log(result);
Siblings of div-1:
1. #text
2. DIV
3. #text
4. BR
5. #text
6. OUTPUT
How It Works
Start one step ahead. First value is div-1.nextSibling.
Loop while el is truthy. Stops when nextSibling is null.
Log each nodeName. Expect #text entries in indented HTML.
Advance each iteration.el = el.nextSibling moves forward.
Edge Cases & Pitfalls
Check these before relying on nextSibling in real UIs.
#text
Whitespace between tags
MDN: pretty-printed HTML inserts Text nodes. nextSibling is often #text, not the next visible tag.
null
Last child is null
Reading .nodeName (or .id) on null throws. Check first or use optional chaining.
comments
Comments count too
A comment between elements is a sibling. nextElementSibling skips it; nextSibling does not.
UI
Prefer nextElementSibling for tags
Use nextSibling when you truly need any node type (including text). For most UI walks, use the element sibling API.
Compatibility
Browser Support
Node.nextSibling is marked Baseline Widely available on MDN (since July 2015).
✓ Baseline · Widely available
Node.nextSibling
Returns the next sibling node or null. Watch for whitespace text nodes. Prefer nextElementSibling for element-only walks.
100%Widely available
Google ChromeAll versions · Desktop & Mobile
Full support
Mozilla FirefoxAll versions · Desktop & Mobile
Full support
Apple SafariAll versions · macOS & iOS
Full support
Microsoft EdgeAll versions · Chromium & Legacy
Full support
Internet ExplorerIE 6+ · Legacy environments
Full support
OperaAll modern versions
Full support
nextSiblingExcellent
Bottom line: Safe everyday DOM API. Remember the #text trap between pretty-printed tags. See the MDN nextSibling reference.
Analysis
Performance Notes
Approach
Cost
Best for
node.nextSibling
O(1)
One step forward
Walk with while
O(k) siblings
Listing following nodes
nextElementSibling
O(1) typical
Element-only UI walks
Sibling pointers are cheap. Prefer a short loop over repeatedly re-querying with querySelectorAll when you already have a starting node. For large lists of elements only, nextElementSibling avoids processing every whitespace text node.
Remember
Key Takeaways
Next node: one step forward in parent.childNodes, or null.
#text trap: pretty HTML often puts whitespace between tags.
UI default: use nextElementSibling when you only want tags.
Null-safe: check before reading properties; walk with while (el).
One line:nextSibling is the next child-list node — often #text in pretty HTML, so prefer nextElementSibling for tags.
Frequently Asked Questions
The node immediately after this one in the parent’s childNodes list, or null if this node is the last child (or has no parent).
No. MDN marks Node.nextSibling as Baseline Widely available (since July 2015). It is a standard DOM property — not Deprecated, Experimental, or Non-standard.
Browsers insert Text nodes for whitespace between tags in the HTML source. So the node after an element is often #text, not the next visible tag.
Use Element.nextElementSibling when you want the next element and want to skip text and comment nodes. Prefer it for most UI sibling walks.
nextSibling is null. Always check before reading nodeName or other properties on the result.
Start from a node and loop: while (el) { …; el = el.nextSibling; }. That is the MDN-style sibling walk.
