ee.List.splice

Entfernt ab dem Startindex „count“-Elemente aus der Liste und fügt an dieser Stelle den Inhalt von „other“ ein. Wenn „start“ negativ ist, wird vom Ende der Liste rückwärts gezählt.

Nutzung	Ausgabe
List.splice(start, count, other)	Liste

Argument	Typ	Details
So gehts: list	Liste
start	Ganzzahl
count	Ganzzahl
other	Liste, Standard: null

Beispiele

Code-Editor (JavaScript)

// An ee.List object.
var list = ee.List([0, 1, 2, 3, 4]);
print('Original list', list);

// If "other" argument is null, elements at positions specified by "start" and
// "count" are deleted. Here, the 3rd element is removed.
print('Remove 1 element', list.splice({start: 2, count: 1, other: null}));

// If "start" is negative, the position is from the end of the list.
print('Remove 2nd from last element', list.splice(-2, 1));

// Deletes 3 elements starting at position 1.
print('Remove multiple sequential elements', list.splice(1, 3));

// Insert elements from the "other" list without deleting existing elements
// by specifying the insert "start" position and setting "count" to 0.
print('Insert new elements', list.splice(2, 0, ['X', 'Y', 'Z']));

// Replace existing elements with those from the "other" list by specifying the
// "start" position to replace and the "count" of proceeding elements. If
// length of "other" list is greater than "count", the remaining "other"
// elements are inserted, they do not replace existing elements.
print('Replace elements', list.splice(2, 3, ['X', 'Y', 'Z']));

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([0, 1, 2, 3, 4])
display('Original list:', ee_list)

# If "other" argument is None, elements at positions specified by "start" and
# "count" are deleted. Here, the 3rd element is removed.
display('Remove 1 element:',
        ee_list.splice(start=2, count=1, other=None))

# If "start" is negative, the position is from the end of the list.
display('Remove 2nd from last element:', ee_list.splice(-2, 1))

# Deletes 3 elements starting at position 1.
display('Remove multiple sequential elements:', ee_list.splice(1, 3))

# Insert elements from the "other" list without deleting existing elements
# by specifying the insert "start" position and setting "count" to 0.
display('Insert new elements:', ee_list.splice(2, 0, ['X', 'Y', 'Z']))

# Replace existing elements with those from the "other" list by specifying the
# "start" position to replace and the "count" of proceeding elements. If
# length of "other" list is greater than "count", the remaining "other"
# elements are inserted, they do not replace existing elements.
display('Replace elements:', ee_list.splice(2, 3, ['X', 'Y', 'Z']))