ee.Array.or

  • The or operation compares two arrays element-wise and returns 1 if either corresponding element is non-zero, otherwise it returns 0.

  • This method is useful for combining binary masks or identifying areas where either input array has a non-zero value.

  • It is accessible in both JavaScript and Python environments of Google Earth Engine (GEE).

  • The result is a new array with the same dimensions as the input arrays, containing the element-wise or results.

 On an element-wise basis, returns 1 if and only if either input value is non-zero.

UsageReturns
Array.or(right)Array
ArgumentTypeDetails
this: leftArrayThe left-hand value.
rightArrayThe right-hand value.

Examples

Code Editor (JavaScript)

var empty = ee.Array([], ee.PixelType.int8());
print(empty.or(empty));  // []

print(ee.Array([0, 0, 1, 1]).or(ee.Array([0, 1, 0, 1])));  // [0,1,1,1]

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)

empty = ee.Array([], ee.PixelType.int8())
display(empty.Or(empty))  # []

# [0, 1, 1, 1]
display(ee.Array([0, 0, 1, 1]).Or(ee.Array([0, 1, 0, 1])))