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ee.FeatureCollection.size

Page Summary

The FeatureCollection.size() method returns the number of elements in a collection.
The method returns an Integer value.
It is applied to a FeatureCollection type object.
Examples in both JavaScript and Python demonstrate its usage to count features in a filtered collection.

Returns the number of elements in the collection.

Usage	Returns
`FeatureCollection. size ()`	Integer

Argument	Type	Details
this: `collection`	FeatureCollection	The collection to count.

Examples

Code Editor (JavaScript)

 // FeatureCollection of power plants in Belgium. 
 var 
  
 fc 
  
 = 
  
 ee 
 . 
 FeatureCollection 
 ( 
 'WRI/GPPD/power_plants' 
 ) 
  
 . 
 filter 
 ( 
 'country_lg == "Belgium"' 
 ); 
 print 
 ( 
 'Number of power plants in Belgium' 
 , 
  
 fc 
 . 
 size 
 ());

Python setup

See the Python Environment page for information on the Python API and using geemap for interactive development.

 import 
  
 ee 
 import 
  
 geemap.core 
  
 as 
  
 geemap

Colab (Python)

 # FeatureCollection of power plants in Belgium. 
 fc 
 = 
 ee 
 . 
 FeatureCollection 
 ( 
 'WRI/GPPD/power_plants' 
 ) 
 . 
 filter 
 ( 
 'country_lg == "Belgium"' 
 ) 
 display 
 ( 
 'Number of power plants in Belgium:' 
 , 
 fc 
 . 
 size 
 ())

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Page Summary

Examples

Code Editor (JavaScript)

Colab (Python)

ee.FeatureCollection.size