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DocumentSnapshot.get() method

Retrieves the field specified by fieldPath. Returns undefined if the document or field doesn't exist.

Signature:

get(fieldPath: string | FieldPath): any;

Parameters

Parameter	Type	Description
fieldPath	string | FieldPath	The path (for example 'foo' or 'foo.bar') to a specific field.

Returns:

any

The data at the specified field location or undefined if no such field exists in the document.