Full-stack JavaScript path (13) Understanding of ElementTraversal specifications

Source: Internet
Author: User

Full-stack JavaScript path (13) Understanding of ElementTraversal specifications

Browsers supporting Element Traversal specifications include IE 9 +, Firefox 3.5 +, Safari 4 +, Chrome and Opera 10 +.


For spaces between elements, no document node is returned before IE9, and all other browsers will return the document node.

In order to be compatible with the differences in browsers without changing the existing DOM standards, the Element Traversal specification is available.


This rule adds five attributes to the element.


  • ChildElementCount
  • FirstElementChild
  • LastElementChild
  • Previuselementsibling
  • NextElementSibling


Detailed official documentation; http://www.w3.org/TR/ElementTraversal/

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