Opens an existing Google Doc by its file ID.
class DocumentApp method .openById()
DocumentApp is the Apps Script service.
.openById() is the method name you will see after a dot in your code.
What it does
Why it's used
- Merge data into a contract or letter stored in Drive.
- Update a doc the user never has to open manually.
Common errors
- Forgetting parentheses on openById. Write DocumentApp.openById(), not DocumentApp.openById or openById by itself.
- Skipping dots between chained calls. Each step needs a dot, like DocumentApp.getActiveDocument().getBody().openById().
- Adding spaces where they do not belong. Write DocumentApp.openById(), not DocumentApp .openById(), DocumentApp.openById (), or DocumentApp . openById().
- Wrong capitalization. Use DocumentApp and openById, not documentapp or openbyid.
Snippets using this method
Explore
Related methods
-
.create()
Creates a new blank Google Doc.
-
.getActiveDocument()
Returns the Google Doc the user currently has open.
-
.appendTable()
Adds a new table to the end of the document.
-
.setText()
Replaces the text content of a document element.
-
.appendParagraph()
Adds a new paragraph to the end of the document.
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