ee.List.get

Gibt das Element an der angegebenen Position in der Liste zurück. Ein negativer Index zählt vom Ende der Liste aus rückwärts.

Nutzung	Ausgabe
List.get(index)	Objekt

Argument	Typ	Details
So gehts: list	Liste
index	Ganzzahl

Beispiele

Code-Editor (JavaScript)

// An ee.List object.
var list = ee.List([5, 10, 15, 20, 25, 30]);

// Fetch elements at specified 0-based positions in the list.
print('The second element', list.get(1));
print('The fourth element', list.get(3));
print('The last element', list.get(-1));
print('The second to last element', list.get(-2));

// ee.Number and integer computed objects are valid inputs.
print('Computed object index input', list.get(list.get(0)));

// The result of ee.List.get is an ambiguous object type. You need to cast the
// result to the expected type to use it in subsequent instance methods. For
// example, if you are fetching a number and wish to add it to another number,
// you must cast the .get() result as an ee.Number.
print('Add fetched number to another number', ee.Number(list.get(1)).add(2));

Python einrichten

Informationen zur Python API und zur Verwendung von geemap für die interaktive Entwicklung finden Sie auf der Seite Python-Umgebung.

import ee
import geemap.core as geemap

Colab (Python)

# An ee.List object.
ee_list = ee.List([5, 10, 15, 20, 25, 30])

# Fetch elements at specified 0-based positions in the list.
display('The second element:', ee_list.get(1))
display('The fourth element:', ee_list.get(3))
display('The last element:', ee_list.get(-1))
display('The second to last element:', ee_list.get(-2))

# ee.Number and integer computed objects are valid inputs.
display('Computed object index input:', ee_list.get(ee_list.get(0)))

# The result of ee.List.get is an ambiguous object type. You need to cast the
# result to the expected type to use it in subsequent instance methods. For
# example, if you are fetching a number and wish to add it to another number,
# you must cast the .get() result as an ee.Number.
display('Add fetched number to another number:',
        ee.Number(ee_list.get(1)).add(2))