Node

A Node is an interface from which a number of DOM types inherit, and allows these various types to be treated (or tested) similarly.
The following all inherit this interface and its methods and properties (though they may return null in particular cases where not relevant; or throw an exception when adding children to a node type for which no children can exist): Document, Element, Attr, CharacterData (which Text, Comment, and CDATASection inherit), ProcessingInstruction, DocumentFragment, DocumentType, Notation, Entity, EntityReference

プロパティ

• Node.attributes
• Node.baseURI
• Node.baseURIObject
• Node.childNodes
• Node.firstChild
• Node.lastChild
• Node.localName
• Node.namespaceURI
• Node.nextSibling
• Node.nodeName
• Node.nodePrincipal
• Node.nodeType
• Node.nodeValue
• Node.ownerDocument
• Node.parentNode
• Node.parentElement
• Node.prefix
• Node.previousSibling
• Node.textContent

メソッド

• Node.appendChild
• Node.cloneNode
• Node.compareDocumentPosition
• Node.contains
• Node.getFeature 廃止 Gecko 7.0
• Node.getUserData 廃止 Gecko 22.0
• Node.hasAttributes 廃止 Gecko 22.0
• Node.hasChildNodes
• Node.insertBefore
• Node.isDefaultNamespace
• Node.isEqualNode
• Node.isSameNode 非推奨 Gecko 9.0 廃止 Gecko 10.0
• Node.isSupported 廃止 Gecko 22.0
• Node.lookupPrefix
• Node.lookupNamespaceURI
• Node.normalize
• Node.removeChild
• Node.replaceChild
• Node.setUserData 廃止 Gecko 22.0

定数

Node.nodeType も参照して下さい。

コードスニペット

Browse all child nodes

The following function recursively cycle all child nodes of a node and execute a callback function upon them (and upon the parent node itself).

function DOMComb (oParent, oCallback) {
  if (oParent.hasChildNodes()) {
    for (var oNode = oParent.firstChild; oNode; oNode = oNode.nextSibling) {
      DOMComb(oNode, oCallback);
    }
  }
  oCallback.call(oParent);
}

構文

DOMComb(parentNode, callbackFunction);

説明

Recursively cycle all child nodes of parentNode and parentNode itself and execute the callbackFunction upon them as this objects.

引数

parentNode

The parent node (Node Object).

callbackFunction

The callback function (Function).

用例

The following example send to the console.log the text content of the body:

function printContent () {
  if (this.nodeValue) { console.log(this.nodeValue); }
}

onload = function () {
  DOMComb(document.body, printContent);
};

仕様書

• DOM Level 1 Core: Node interface
• DOM Level 2 Core: Node interface
• DOM Level 3 Core: Node interface