## Node class Base class for all nodes of a Word document. To learn more, visit the [Aspose.Words Document Object Model (DOM)](https://docs.aspose.com/words/nodejs-net/aspose-words-document-object-model/) documentation article. ### Remarks A document is represented as a tree of nodes, similar to DOM or XmlDocument. For more info see the Composite design pattern. The [Node](./) class: * Defines the child node interface. * Defines the interface for visiting nodes. * Provides default cloning capability. * Implements parent node and owner document mechanisms. * Implements access to sibling nodes. ### Properties | Name | Description | | --- | --- | | [customNodeId](./customNodeId/) | Specifies custom node identifier. | | [document](./document/) | Gets the document to which this node belongs. | | [isComposite](./isComposite/) | Returns ``true`` if this node can contain other nodes. | | [nextSibling](./nextSibling/) | Gets the node immediately following this node. | | [nodeType](./nodeType/) | Gets the type of this node. | | [parentNode](./parentNode/) | Gets the immediate parent of this node. | | [previousSibling](./previousSibling/) | Gets the node immediately preceding this node. | | [range](./range/) | Returns a [Range](../range/) object that represents the portion of a document that is contained in this node. | ### Methods | Name | Description | | --- | --- | |[ asBody()](./asBody/#default) | Cast node to [Body](../body/). | |[ asBookmarkEnd()](./asBookmarkEnd/#default) | Cast node to [BookmarkEnd](../bookmarkend/). | |[ asBookmarkStart()](./asBookmarkStart/#default) | Cast node to [BookmarkStart](../bookmarkstart/). | |[ asBuildingBlock()](./asBuildingBlock/#default) | Cast node to [BuildingBlock](../buildingblock/). | |[ asCell()](./asCell/#default) | Cast node to [Cell](../../aspose.words.tables/cell/). | |[ asComment()](./asComment/#default) | Cast node to [Comment](../comment/). | |[ asCommentRangeEnd()](./asCommentRangeEnd/#default) | Cast node to [CommentRangeEnd](../commentrangeend/). | |[ asCommentRangeStart()](./asCommentRangeStart/#default) | Cast node to [CommentRangeStart](../commentrangestart/). | |[ asCompositeNode()](./asCompositeNode/#default) | Cast node to [CompositeNode](../compositenode/). | |[ asDocument()](./asDocument/#default) | Cast node to [Node.document](./document/). | |[ asEditableRangeEnd()](./asEditableRangeEnd/#default) | Cast node to [EditableRangeEnd](../editablerangeend/). | |[ asEditableRangeStart()](./asEditableRangeStart/#default) | Cast node to [EditableRangeStart](../editablerangestart/). | |[ asFieldEnd()](./asFieldEnd/#default) | Cast node to [FieldEnd](../../aspose.words.fields/fieldend/). | |[ asFieldSeparator()](./asFieldSeparator/#default) | Cast node to [FieldSeparator](../../aspose.words.fields/fieldseparator/). | |[ asFieldStart()](./asFieldStart/#default) | Cast node to [FieldStart](../../aspose.words.fields/fieldstart/). | |[ asFootnote()](./asFootnote/#default) | Cast node to [Footnote](../../aspose.words.notes/footnote/). | |[ asFormField()](./asFormField/#default) | Cast node to [FormField](../../aspose.words.fields/formfield/). | |[ asGlossaryDocument()](./asGlossaryDocument/#default) | Cast node to [GlossaryDocument](../../aspose.words.buildingblocks/glossarydocument/). | |[ asGroupShape()](./asGroupShape/#default) | Cast node to [GroupShape](../../aspose.words.drawing/groupshape/). | |[ asHeaderFooter()](./asHeaderFooter/#default) | Cast node to [HeaderFooter](../headerfooter/). | |[ asOfficeMath()](./asOfficeMath/#default) | Cast node to [OfficeMath](../../aspose.words.math/officemath/). | |[ asParagraph()](./asParagraph/#default) | Cast node to [Paragraph](../paragraph/). | |[ asRow()](./asRow/#default) | Cast node to [Row](../../aspose.words.tables/row/). | |[ asRun()](./asRun/#default) | Cast node to [Run](../run/). | |[ asSection()](./asSection/#default) | Cast node to [Section](../section/). | |[ asShape()](./asShape/#default) | Cast node to [Shape](../../aspose.words.drawing/shape/). | |[ asSmartTag()](./asSmartTag/#default) | Cast node to [SmartTag](../../aspose.words.markup/smarttag/). | |[ asSpecialChar()](./asSpecialChar/#default) | Cast node to [SpecialChar](../specialchar/). | |[ asStructuredDocumentTag()](./asStructuredDocumentTag/#default) | Cast node to [StructuredDocumentTag](../../aspose.words.markup/structureddocumenttag/). | |[ asStructuredDocumentTagRangeEnd()](./asStructuredDocumentTagRangeEnd/#default) | Cast node to [StructuredDocumentTagRangeEnd](../../aspose.words.markup/structureddocumenttagrangeend/). | |[ asStructuredDocumentTagRangeStart()](./asStructuredDocumentTagRangeStart/#default) | Cast node to [StructuredDocumentTagRangeStart](../../aspose.words.markup/structureddocumenttagrangestart/). | |[ asSubDocument()](./asSubDocument/#default) | Cast node to [SubDocument](../subdocument/). | |[ asTable()](./asTable/#default) | Cast node to [Table](../table/). | |[ clone(isCloneChildren)](./clone/#boolean) | Creates a duplicate of the node. | |[ getAncestor(ancestorType)](./getAncestor/#nodetype) | Gets the first ancestor of the specified [NodeType](../nodetype/). | |[ getText()](./getText/#default) | Gets the text of this node and of all its children. | |[ nextPreOrder(rootNode)](./nextPreOrder/#node) | Gets next node according to the pre-order tree traversal algorithm. | |[ nodeTypeToString(nodeType)](./nodeTypeToString/#nodetype) | A utility method that converts a node type enum value into a user friendly string. | |[ previousPreOrder(rootNode)](./previousPreOrder/#node) | Gets the previous node according to the pre-order tree traversal algorithm. | |[ referenceEquals(other)](./referenceEquals/#node) | | |[ remove()](./remove/#default) | Removes itself from the parent. | |[ toString(saveFormat)](./toString/#saveformat) | Exports the content of the node into a string in the specified format. | |[ toString(saveOptions)](./toString/#saveoptions) | Exports the content of the node into a string using the specified save options. | ### Examples Shows how to clone a composite node. ```js let doc = new aw.Document(); let para = doc.firstSection.body.firstParagraph; para.appendChild(new aw.Run(doc, "Hello world!")); // Below are two ways of cloning a composite node. // 1 - Create a clone of a node, and create a clone of each of its child nodes as well. let cloneWithChildren = para.clone(true).asParagraph(); expect(cloneWithChildren.hasChildNodes).toEqual(true); expect(cloneWithChildren.getText().trim()).toEqual("Hello world!"); // 2 - Create a clone of a node just by itself without any children. let cloneWithoutChildren = para.clone(false).asParagraph(); expect(cloneWithoutChildren.hasChildNodes).toEqual(false); expect(cloneWithoutChildren.getText().trim()).toEqual(''); ``` Shows how to traverse through a composite node's collection of child nodes. ```js let doc = new aw.Document(); // Add two runs and one shape as child nodes to the first paragraph of this document. let paragraph = doc.getParagraph(0, true); paragraph.appendChild(new aw.Run(doc, "Hello world! ")); let shape = new aw.Drawing.Shape(doc, aw.Drawing.ShapeType.Rectangle); shape.width = 200; shape.height = 200; // Note that the 'CustomNodeId' is not saved to an output file and exists only during the node lifetime. shape.customNodeId = 100; shape.wrapType = aw.Drawing.WrapType.Inline; paragraph.appendChild(shape); paragraph.appendChild(new aw.Run(doc, "Hello again!")); // Iterate through the paragraph's collection of immediate children, // and print any runs or shapes that we find within. let children = paragraph.getChildNodes(aw.NodeType.Any, false); expect(paragraph.getChildNodes(aw.NodeType.Any, false).count).toEqual(3); for (let child of children) switch (child.nodeType) { case aw.NodeType.Run: console.log("Run contents:"); console.log(`\t\"${child.getText().trim()}\"`); break; case aw.NodeType.Shape: let childShape = child.asShape(); console.log("Shape:"); console.log(`\t${childShape.shapeType}, ${childShape.width}x${childShape.height}`); expect(shape.customNodeId).toEqual(100); break; } ``` Shows how to remove all child nodes of a specific type from a composite node. ```js let doc = new aw.Document(base.myDir + "Tables.docx"); expect(doc.getChildNodes(aw.NodeType.Table, true).count).toEqual(2); let curNode = doc.firstSection.body.firstChild; while (curNode != null) { // Save the next sibling node as a variable in case we want to move to it after deleting this node. let nextNode = curNode.nextSibling; // A section body can contain Paragraph and Table nodes. // If the node is a Table, remove it from the parent. if (curNode.nodeType == aw.NodeType.Table) curNode.remove(); curNode = nextNode; } expect(doc.getChildNodes(aw.NodeType.Table, true).count).toEqual(0); ``` ### See Also * module [Aspose.Words](../)