Python devops Development (16)----dom&&jquery

Content directory:

• Dom
  • Find
  • Operation
  • Event
• Jquery
  • Find
  • Screening
  • Operation
  • Event
  • Extended

Dom

The Document Object model (Doc object Model,dom) is a programming interface for HTML and XML documents. It provides a structured representation of the document, which can change the content and presentation of the document. What we are most concerned about is that Dom links Web pages with scripts and other programming languages. Dom belongs to the browser, not the core content of the specification in the JavaScript language specifications.

Find Element Direct Lookup

document.getElementById             gets a label based on the ID document.getelementsbyname          Gets a collection of tags based on the Name property Document.getelementsbyclassname gets a collection of tags based on the     class attribute document.getElementsByTagName       gets a collection of tags based on the tag name

Indirect lookup

ParentNode          //parent node childnodes//          All child nodes FirstChild          //first child node LastChild           //Last child node nextsibling         // Next sibling node previoussibling     //Previous sibling node parentelement           //parent node tag element children//                All child tags firstelementchild       // First child tag element lastelementchild        //Last child tag element nextelementtsibling     //Next sibling tag element previouselementsibling  // Previous sibling tag element

The top half of this is node contains elements and content, and the lower part element contains only elements

Python devops Development (16)----dom&&jquery