ee.Dictionary.set

Page Summary

• Dictionary.set(key, value) is used to set a value in a dictionary.

• This method returns the modified dictionary.

• The method takes three arguments: the dictionary itself, a string key, and an object value.

• Examples in JavaScript and Python demonstrate how to use Dictionary.set to change a value associated with a specific key.

Set a value in a dictionary.

Usage	Returns
Dictionary.set(key, value)	Dictionary

Argument	Type	Details
this: dictionary	Dictionary
key	String
value	Object

Examples

Code Editor (JavaScript)

// A dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).
var dict = ee.Dictionary({
  B1: 182,
  B2: 219,
  B3: 443
});

print('Set value for B3 key as -9999', dict.set('B3', -9999));

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)

# A dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).
dic = ee.Dictionary({
    'B1': 182,
    'B2': 219,
    'B3': 443
})

display('Set value for B3 key as -9999:', dic.set('B3', -9999))