a custom DOM method to get nodes by node type
When the code is run a method getNodesByType will be attached to all element node types in the current DOM tree and the document object.
##Examples ###getNodesByType Execute the method with either a numeric value or a node type name.
document.getNodesByType(1); // get all element nodes in the document
document.getNodesByType("TEXT_NODE"); // get all text nodes in the document
var item = document.getElementById("item");
item.getNodesByType("COMMENT_NODE"); // get all child comment node types
item.getNodesByType(1); // get all child element node types
###getElementsByAttribute
Updated with a new method: getElementsByAttribute(name, value). Both the name and value arguments of getElementsByAttribute are optional.
document.getElementsByAttribute("class", "segment"); // get all elements with a class attribute of value segment
document.getElementsByAttribute("src", ""); // get all elements with a src attribute of any value
var item = document.getElementById("item");
item.getElementsByAttribute("id"); // get all child elements with an id attribute of any value
item.getElementsByAttribute("", "purple_alien"); // get all child elements with any attribute whose value is purple_alien
##Node Types Here are the supported node types and their corresponding numeric values:
- 0 - all nodes (non standard)
- 1 - "ELEMENT_NODE"
- 2 - "ATTRIBUTE_NODE"
- 3 - "TEXT_NODE"
- 4 - "CDATA_SECTION_NODE"
- 5 - "ENTITY_REFERENCE_NODE"
- 6 - "ENTITY_NODE"
- 7 - "PROCESSING_INSTRUCTION_NODE"
- 8 - "COMMENT_NODE"
- 9 - "DOCUMENT_NODE"
- 10 - "DOCUMENT_TYPE_NODE"
- 11 - "DOCUMENT_FRAGMENT_NODE"
- 12 - "NOTATION_NODE"
All of the above node types remain valid types in the W3C specifications, but the WHATWG HTML5 group has deprecated these types:
- 2 - "ATTRIBUTE_NODE"
- 4 - "CDATA_SECTION_NODE"
- 5 - "ENTITY_REFERENCE_NODE"
- 6 - "ENTITY_NODE"
- 12 - "NOTATION_NODE"