3 ms·

What is a DOM node? A peek under the hood

24 points by thunderbong 2y ago

_nalply 2y ago
https://archive.is/KXoBn https://archive.is/KXoBn
politelemon 2y ago
502 error currently
- peterburkimsher 2y ago
  Same here
fricze 2y ago
tl;dr; JavaScript DOM nodes are just handles to Blink DOM nodes. The article doesn't peek under the hood tbh. If you want to look under the hood you should analyze the Blink implementation.
- interloxia 2y ago
  Not my area, please post more links. Here are the first two that I found that gave a bit of an introduction to the topic. https://developer.chrome.com/docs/chromium/blinkng https://developer.chrome.com/docs/chromium/blinkng https://firefox-source-docs.mozilla.org/gfx/RenderingOverview.html https://firefox-source-docs.mozilla.org/gfx/RenderingOvervie...
- orangepanda 2y ago
  No relation to the <blink/> tag, I presume?
  - wvbdmp 2y ago
    Blink is Chrome’s rendering engine, originally forked from Webkit. Interestingly, it is indeed named after the blink tag.
twiss 2y ago
For a more authoritative reference, the WebIDL spec explains: (https://webidl.spec.whatwg.org/#idl-objects https://webidl.spec.whatwg.org/#idl-objects) > the browser-implemented DOM objects (implementing interfaces such as Node and Document) that provide access to a web page’s contents to JavaScript running in the page would be platform objects. These objects might be exotic objects, implemented in a language like C++, or they might be native JavaScript objects. Regardless, an implementation of a given set of IDL fragments needs to be able to recognize all platform objects that are created by the implementation. This might be done by having some internal state that records whether a given object is indeed a platform object for that implementation, or perhaps by observing that the object is implemented by a given internal C++ class. How exactly platform objects are recognized by a given implementation of a set of IDL fragments is implementation specific.
Ezek-iel 2y ago
There is a typo at the first sentence of the conclusion "JavaScript objects aren't actually DOM nodes at all." instead of "DOM nodes aren't actually Javascript objects at all."

24 points by thunderbong 2y ago

_nalply 2y ago

https://archive.is/KXoBn https://archive.is/KXoBn

politelemon 2y ago

502 error currently

peterburkimsher 2y ago
Same here

fricze 2y ago

tl;dr; JavaScript DOM nodes are just handles to Blink DOM nodes. The article doesn't peek under the hood tbh. If you want to look under the hood you should analyze the Blink implementation.

interloxia 2y ago
Not my area, please post more links. Here are the first two that I found that gave a bit of an introduction to the topic. https://developer.chrome.com/docs/chromium/blinkng https://developer.chrome.com/docs/chromium/blinkng https://firefox-source-docs.mozilla.org/gfx/RenderingOverview.html https://firefox-source-docs.mozilla.org/gfx/RenderingOvervie...
orangepanda 2y ago
No relation to the <blink/> tag, I presume?
- wvbdmp 2y ago
  Blink is Chrome’s rendering engine, originally forked from Webkit. Interestingly, it is indeed named after the blink tag.

twiss 2y ago

For a more authoritative reference, the WebIDL spec explains: (https://webidl.spec.whatwg.org/#idl-objects https://webidl.spec.whatwg.org/#idl-objects) > the browser-implemented DOM objects (implementing interfaces such as Node and Document) that provide access to a web page’s contents to JavaScript running in the page would be platform objects. These objects might be exotic objects, implemented in a language like C++, or they might be native JavaScript objects. Regardless, an implementation of a given set of IDL fragments needs to be able to recognize all platform objects that are created by the implementation. This might be done by having some internal state that records whether a given object is indeed a platform object for that implementation, or perhaps by observing that the object is implemented by a given internal C++ class. How exactly platform objects are recognized by a given implementation of a set of IDL fragments is implementation specific.

Ezek-iel 2y ago

There is a typo at the first sentence of the conclusion "JavaScript objects aren't actually DOM nodes at all." instead of "DOM nodes aren't actually Javascript objects at all."