ee.FeatureCollection.set

AI-generated Key Takeaways

• The set method overrides one or more metadata properties of an Element.

• The set method returns the element with the specified properties overridden.

• The set method accepts either a dictionary of properties or a vararg sequence of properties as input.

• The examples show how to set single, multiple, and nested properties, as well as how to overwrite existing properties.

Overrides one or more metadata properties of an Element.

Returns the element with the specified properties overridden.

Usage	Returns
FeatureCollection.set(var_args)	Element

Argument	Type	Details
this: element	Element	The Element instance.
var_args	VarArgs<Object>	Either a dictionary of properties, or a vararg sequence of properties, e.g. key1, value1, key2, value2, ...

Examples

Code Editor (JavaScript)

// An empty FeatureCollection for simple demonstration.
var fc = ee.FeatureCollection([]);

// Set a single new property using a key-value pair.
fc = fc.set('key_1', 'value 1');

// Set multiple new properties using a series of key-value pairs.
fc = fc.set('key_2', 'value 2',
            'key_3', 3);

// Set new properties using a dictionary of key-value pairs.
fc = fc.set({
  key_5: ee.Array([1, 2, 3]),
  key_6: ee.Image(0),
  key_7: ee.Feature(null)
});
print('New FeatureCollection properties added', fc);

// Overwrite an existing property.
fc = fc.set('key_1', 'overwritten');
print('FeatureCollection property overwritten', fc);

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)

from pprint import pprint

# An empty FeatureCollection for simple demonstration.
fc = ee.FeatureCollection([])

# Set a single new property using a key-value pair.
fc = fc.set('key_1', 'value 1')

# Set multiple new properties using a series of key-value pairs.
fc = fc.set('key_2', 'value 2', 'key_3', 3)

# Set new properties using a dictionary of key-value pairs.
fc = fc.set({
  'key_5': ee.Array([1, 2, 3]),
  'key_6': ee.Image(0),
  'key_7': ee.Feature(None)
})
print('New FeatureCollection properties added:')
pprint(fc.getInfo())

# Overwrite an existing property.
fc = fc.set('key_1', 'overwritten')
print('FeatureCollection property overwritten:')
pprint(fc.getInfo())