Demix Parentnode.{first,last}ElementChild to Element, Document, DocumentFragment pages

[Elchi3]

Before:
https://developer.mozilla.org/en-US/docs/Web/API/ParentNode/firstElementChild
https://developer.mozilla.org/en-US/docs/Web/API/ParentNode/lastElementChild

After:
https://developer.mozilla.org/en-US/docs/Web/API/Element/firstElementChild
https://developer.mozilla.org/en-US/docs/Web/API/Document/firstElementChild
https://developer.mozilla.org/en-US/docs/Web/API/DocumentFragment/firstElementChild

https://developer.mozilla.org/en-US/docs/Web/API/Element/lastElementChild
https://developer.mozilla.org/en-US/docs/Web/API/Document/lastElementChild
https://developer.mozilla.org/en-US/docs/Web/API/DocumentFragment/lastElementChild

IDL:

interface mixin ParentNode {
  readonly attribute Element? firstElementChild;
  readonly attribute Element? lastElementChild;
};
Document includes ParentNode;
DocumentFragment includes ParentNode;
Element includes ParentNode;

[github-actions]

Preview URLs

• https://pr4070.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Document
• https://pr4070.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Document/firstElementChild
• https://pr4070.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Document/lastElementChild
• https://pr4070.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/DocumentFragment
• https://pr4070.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/DocumentFragment/firstElementChild
• https://pr4070.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/DocumentFragment/lastElementChild
• https://pr4070.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Element
• https://pr4070.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Element/firstElementChild
• https://pr4070.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Element/lastElementChild
• https://pr4070.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Node/firstChild

Flaws

URL: /en-US/docs/Web/API/Document
Title: Document
on GitHub
Flaw count: 164

• macros:
  • wrong xref macro used (consider changing which macro you use)
  • wrong xref macro used (consider changing which macro you use)
  • wrong xref macro used (consider changing which macro you use)
  • wrong xref macro used (consider changing which macro you use)
  • wrong xref macro used (consider changing which macro you use)
  • and 133 more flaws omitted
• broken_links:
  • Can't resolve /en-US/docs/XUL_Overlays
• bad_bcd_links:
  • no explanation!
  • no explanation!
  • no explanation!
  • no explanation!
  • no explanation!
  • and 20 more flaws omitted

---

URL: /en-US/docs/Web/API/Document/firstElementChild
Title: Document.firstElementChild
on GitHub

No flaws! 🎉

---

URL: /en-US/docs/Web/API/Document/lastElementChild
Title: Document.lastElementChild
on GitHub

No flaws! 🎉

---

URL: /en-US/docs/Web/API/DocumentFragment
Title: DocumentFragment
on GitHub
Flaw count: 4

• macros:
  • /en-US/docs/Web/API/DocumentFragment/getElementById does not exist
• bad_bcd_links:
  • no explanation!
  • no explanation!
  • no explanation!

---

URL: /en-US/docs/Web/API/DocumentFragment/firstElementChild
Title: DocumentFragment.firstElementChild
on GitHub

No flaws! 🎉

---

URL: /en-US/docs/Web/API/DocumentFragment/lastElementChild
Title: DocumentFragment.lastElementChild
on GitHub

No flaws! 🎉

---

URL: /en-US/docs/Web/API/Element
Title: Element
on GitHub
Flaw count: 7

• macros:
  • /en-us/docs/web/api/animatable (url: /en-US/docs/Web/API/Animatable) does not exist
  • /en-US/docs/Web/API/GlobalEventHandlers/onshow does not exist
• bad_bcd_links:
  • no explanation!
  • no explanation!
  • no explanation!
  • no explanation!
  • no explanation!

---

URL: /en-US/docs/Web/API/Element/firstElementChild
Title: Element.firstElementChild
on GitHub
Flaw count: 1

• macros:
  • /en-us/docs/web/api/animatable (url: /en-US/docs/Web/API/Animatable) does not exist

---

URL: /en-US/docs/Web/API/Element/lastElementChild
Title: Element.lastElementChild
on GitHub
Flaw count: 1

• macros:
  • /en-us/docs/web/api/animatable (url: /en-US/docs/Web/API/Animatable) does not exist

---

URL: /en-US/docs/Web/API/Node/firstChild
Title: Node.firstChild
on GitHub
Flaw count: 1

• broken_links:
  • Can't resolve /en-US/docs/Web/API/Document_Object_Model/Whitespace_in_the_DOM

External URLs

URL: /en-US/docs/Web/API/Document
Title: Document
on GitHub

• https://dom.spec.whatwg.org/ (1 time)
• https://drafts.csswg.org/cssom-view/ (1 time)
• https://html.spec.whatwg.org/multipage/dom.html (1 time)
• https://msdn.microsoft.com/en-us/library/ms533752%28v=VS.85%29.aspx (1 time)
• https://w3c.github.io/pointerlock/ (1 time)
• https://w3c.github.io/selection-api/ (1 time)
• https://www.w3.org/TR/DOM-Level-2-Core/ (1 time)
• https://www.w3.org/TR/DOM-Level-3-Core/ (1 time)
• https://www.w3.org/TR/DOM-Level-3-XPath/xpath.html (1 time)
• https://www.w3.org/TR/REC-DOM-Level-1/ (1 time)
• https://www.w3.org/TR/dom/ (1 time)
• https://www.w3.org/TR/page-visibility/ (1 time)

---

URL: /en-US/docs/Web/API/Document/firstElementChild
Title: Document.firstElementChild
on GitHub

• https://dom.spec.whatwg.org/ (1 time)

---

URL: /en-US/docs/Web/API/Document/lastElementChild
Title: Document.lastElementChild
on GitHub

• https://dom.spec.whatwg.org/ (1 time)

---

URL: /en-US/docs/Web/API/DocumentFragment
Title: DocumentFragment
on GitHub

• https://dom.spec.whatwg.org/ (1 time)
• https://www.w3.org/TR/DOM-Level-2-Core/ (1 time)
• https://www.w3.org/TR/DOM-Level-2-Core/core.html (1 time)
• https://www.w3.org/TR/DOM-Level-3-Core/core.html (1 time)
• https://www.w3.org/TR/REC-DOM-Level-1/ (1 time)
• https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html (1 time)
• https://www.w3.org/TR/selectors-api/ (1 time)

---

URL: /en-US/docs/Web/API/DocumentFragment/firstElementChild
Title: DocumentFragment.firstElementChild
on GitHub

• https://dom.spec.whatwg.org/ (1 time)

---

URL: /en-US/docs/Web/API/DocumentFragment/lastElementChild
Title: DocumentFragment.lastElementChild
on GitHub

• https://dom.spec.whatwg.org/ (1 time)

---

URL: /en-US/docs/Web/API/Element
Title: Element
on GitHub

• https://dom.spec.whatwg.org/ (1 time)
• https://drafts.csswg.org/cssom-view/ (1 time)
• https://drafts.csswg.org/web-animations-1/ (1 time)
• https://fullscreen.spec.whatwg.org/ (1 time)
• https://w3c.github.io/DOM-Parsing/ (1 time)
• https://w3c.github.io/pointerlock/ (1 time)
• https://www.w3.org/1999/xhtml (1 time)
• https://www.w3.org/TR/DOM-Level-2-Core/core.html (1 time)
• https://www.w3.org/TR/DOM-Level-3-Core/core.html (1 time)
• https://www.w3.org/TR/ElementTraversal/ (1 time)
• https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html (1 time)
• https://www.w3.org/TR/dom/ (1 time)
• https://www.w3.org/TR/pointerevents1/ (1 time)
• https://www.w3.org/TR/pointerevents2/ (1 time)
• https://www.w3.org/TR/selectors-api/ (1 time)

---

URL: /en-US/docs/Web/API/Element/firstElementChild
Title: Element.firstElementChild
on GitHub

• https://dom.spec.whatwg.org/ (1 time)

---

URL: /en-US/docs/Web/API/Element/lastElementChild
Title: Element.lastElementChild
on GitHub

• https://dom.spec.whatwg.org/ (1 time)

---

URL: /en-US/docs/Web/API/Node/firstChild
Title: Node.firstChild
on GitHub

• https://dom.spec.whatwg.org/ (1 time)
• https://www.w3.org/TR/DOM-Level-2-Core/core.html (1 time)
• https://www.w3.org/TR/DOM-Level-3-Core/core.html (1 time)
• https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html (1 time)