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DOM State-preserving move (Node.prototype.moveBefore) #375
Description
WebKittens
Title of the spec
DOM: Node.prototype.moveBefore
URL to the spec
URL to the spec's repository
Issue Tracker URL
No response
Explainer URL
https://github.com/noamr/dom/blob/spm-explainer/moveBefore-explainer.md
TAG Design Review URL
Mozilla standards-positions issue URL
mozilla/standards-positions#1053
WebKit Bugzilla URL
No response
Radar URL
No response
Description
We're proposing a new DOM primitive, Node.prototype.moveBefore, a drop-in replacement for Node.prototype.insertBefore, that allows moving elements in a node tree without incurring state-resets. See details at the explainer and at whatwg/dom#1255. Would love to shape this together with WebKit + Mozilla.
Reacted by Oliver Williams, Darryl Yeo, Jayden Pearse and Andrew
Activity
[-]State-preserving move (`Node.prototype.moveBefore`)[/-][+]DOM State-preserving move (`Node.prototype.moveBefore`)[/+]annevk commentedon Aug 30, 2024
I suggest we resolve this as "position: support" one week from now. There are a couple of design aspects that will need to be worked through, such as handling animations and creating a suitable mutation record, but overall this looks like the correct way to add a new tree primitive to the DOM.
KaruppuTiger commentedon Jul 13, 2026