An element representing a symbol in a mathematical Equation
. An EquationSymbol
cannot contain any other element. For more information on document structure, see the guide to extending Google Docs.
Methods
Method | Return type | Brief description |
---|---|---|
copy() | EquationSymbol | Returns a detached, deep copy of the current element. |
getAttributes() | Object | Retrieves the element's attributes. |
getCode() | String | Retrieves the code corresponding to the equation symbol. |
getNextSibling() | Element | Retrieves the element's next sibling element. |
getParent() | ContainerElement | Retrieves the element's parent element. |
getPreviousSibling() | Element | Retrieves the element's previous sibling element. |
getType() | ElementType | Retrieves the element's ElementType . |
isAtDocumentEnd() | Boolean | Determines whether the element is at the end of the Document . |
merge() | EquationSymbol | Merges the element with the preceding sibling of the same type. |
removeFromParent() | EquationSymbol | Removes the element from its parent. |
setAttributes(attributes) | EquationSymbol | Sets the element's attributes. |
Detailed documentation
copy()
Returns a detached, deep copy of the current element.
Any child elements present in the element are also copied. The new element doesn't have a parent.
Return
EquationSymbol
— The new copy.
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents
getAttributes()
Retrieves the element's attributes.
The result is an object containing a property for each valid element attribute where each
property name corresponds to an item in the DocumentApp.Attribute
enumeration.
const doc = DocumentApp.getActiveDocument(); const documentTab = doc.getActiveTab().asDocumentTab(); const body = documentTab.getBody(); // Append a styled paragraph. const par = body.appendParagraph('A bold, italicized paragraph.'); par.setBold(true); par.setItalic(true); // Retrieve the paragraph's attributes. const atts = par.getAttributes(); // Log the paragraph attributes. for (const att in atts) { Logger.log(`${att}:${atts[att]}`); }
Return
Object
— The element's attributes.
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents
getCode()
Retrieves the code corresponding to the equation symbol.
Return
String
— the symbol code
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents
getNextSibling()
Retrieves the element's next sibling element.
The next sibling has the same parent and follows the current element.
Return
Element
— The next sibling element.
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents
getParent()
Retrieves the element's parent element.
The parent element contains the current element.
Return
ContainerElement
— The parent element.
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents
getPreviousSibling()
Retrieves the element's previous sibling element.
The previous sibling has the same parent and precedes the current element.
Return
Element
— The previous sibling element.
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents
getType()
Retrieves the element's ElementType
.
Use getType()
to determine the exact type of a given element.
const doc = DocumentApp.getActiveDocument(); const documentTab = doc.getActiveTab().asDocumentTab(); const body = documentTab.getBody(); // Obtain the first element in the active tab's body. const firstChild = body.getChild(0); // Use getType() to determine the element's type. if (firstChild.getType() === DocumentApp.ElementType.PARAGRAPH) { Logger.log('The first element is a paragraph.'); } else { Logger.log('The first element is not a paragraph.'); }
Return
ElementType
— The element type.
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents
isAtDocumentEnd()
Determines whether the element is at the end of the Document
.
Return
Boolean
— Whether the element is at the end of the tab.
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents
merge()
Merges the element with the preceding sibling of the same type.
Only elements of the same ElementType
can be merged. Any child elements contained in
the current element are moved to the preceding sibling element.
The current element is removed from the document.
const doc = DocumentApp.getActiveDocument(); const documentTab = doc.getActiveTab().asDocumentTab(); const body = documentTab.getBody(); // Example 1: Merge paragraphs // Append two paragraphs to the document's active tab. const par1 = body.appendParagraph('Paragraph 1.'); const par2 = body.appendParagraph('Paragraph 2.'); // Merge the newly added paragraphs into a single paragraph. par2.merge(); // Example 2: Merge table cells // Create a two-dimensional array containing the table's cell contents. const cells = [ ['Row 1, Cell 1', 'Row 1, Cell 2'], ['Row 2, Cell 1', 'Row 2, Cell 2'], ]; // Build a table from the array. const table = body.appendTable(cells); // Get the first row in the table. const row = table.getRow(0); // Get the two cells in this row. const cell1 = row.getCell(0); const cell2 = row.getCell(1); // Merge the current cell into its preceding sibling element. const merged = cell2.merge();
Return
EquationSymbol
— The merged element.
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents
removeFromParent()
Removes the element from its parent.
const doc = DocumentApp.getActiveDocument(); const documentTab = doc.getActiveTab().asDocumentTab(); const body = documentTab.getBody(); // Remove all images in the active tab's body. const imgs = body.getImages(); for (let i = 0; i < imgs.length; i++) { imgs[i].removeFromParent(); }
Return
EquationSymbol
— The removed element.
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents
setAttributes(attributes)
Sets the element's attributes.
The specified attributes parameter must be an object where each property name is an item in
the DocumentApp.Attribute
enumeration and each property value is the new value to be
applied.
const doc = DocumentApp.getActiveDocument(); const documentTab = doc.getActiveTab().asDocumentTab(); const body = documentTab.getBody(); // Define a custom paragraph style. const style = {}; style[DocumentApp.Attribute.HORIZONTAL_ALIGNMENT] = DocumentApp.HorizontalAlignment.RIGHT; style[DocumentApp.Attribute.FONT_FAMILY] = 'Calibri'; style[DocumentApp.Attribute.FONT_SIZE] = 18; style[DocumentApp.Attribute.BOLD] = true; // Append a plain paragraph. const par = body.appendParagraph('A paragraph with custom style.'); // Apply the custom style. par.setAttributes(style);
Parameters
Name | Type | Description |
---|---|---|
attributes | Object | The element's attributes. |
Return
EquationSymbol
— The current element.
Authorization
Scripts that use this method require authorization with one or more of the following scopes:
-
https://www.googleapis.com/auth/documents.currentonly
-
https://www.googleapis.com/auth/documents