ee.Dictionary.get

    • The get method extracts a named value from a dictionary.

    • If the specified key is not found in the dictionary, a default value is returned, unless the default value is null.

    • The method requires the dictionary itself, a string key , and an optional defaultValue of type Object.

     Extracts a named value from a dictionary. If the dictionary does not contain the given key, then defaultValue is returned, unless it is null.
    Usage Returns
    Dictionary. get (key, defaultValue ) Object
    Argument Type Details
    this: dictionary
    		Dictionary
    key
    		String
    defaultValue
    		Object, default: null

    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 
 ( 
 'Value for "B1" key' 
 , 
  
 dict 
 . 
 get 
 ( 
 'B1' 
 )); 
 // Set a default value for the case where the key does not exist. 
 print 
 ( 
 'Value for nonexistent "Band_1" key' 
 , 
  
 dict 
 . 
 get 
 ({ 
 key 
 : 
  
 'Band_1' 
 , 
  
 defaultValue 
 : 
  
 - 
 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 
 ( 
 'Value for "B1" key:' 
 , 
 dic 
 . 
 get 
 ( 
 'B1' 
 )) 
 # Set a default value for the case where the key does not exist. 
 display 
 ( 
 'Value for nonexistent "Band_1" key:' 
 , 
 dic 
 . 
 get 
 ( 
 ** 
 { 
 'key' 
 : 
 'Band_1' 
 , 
 'defaultValue' 
 : 
 - 
 9999 
 }))
    Create a Mobile Website
    View Site in Mobile | Classic
    Share by: