ee.Dictionary.getNumber

  • The Dictionary.getNumber() method extracts a numerical value associated with a specific key from a dictionary object within the Earth Engine environment.

  • It accepts a dictionary and a key (string) as input and returns the corresponding value as an ee.Number object if found.

  • Examples are provided in JavaScript and Python demonstrating how to use the Dictionary.getNumber() method to retrieve numerical values from dictionaries, particularly in the context of Earth Engine image analysis.

 Extracts a named number value from a dictionary.

UsageReturns
Dictionary.getNumber(key)Number
ArgumentTypeDetails
this: dictionaryDictionary
keyString

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('The "B1" value as an ee.Number object', dict.getNumber('B1'));

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
})

print('The "B1" value as an ee.Number object:', dic.getNumber('B1').getInfo())