Sort a collection by the specified property.
Returns the sorted collection.
Usage | Returns | ImageCollection.sort(property, ascending) | Collection |
Argument | Type | Details | this: collection | Collection | The Collection instance. |
property | String | The property to sort by. |
ascending | Boolean, optional | Whether to sort in ascending or descending order. The default is true (ascending). |
Examples
Code Editor (JavaScript)
// A Landsat 8 TOA image collection (2 months of images at a specific point).
var col = ee.ImageCollection('LANDSAT/LC08/C02/T1_TOA')
.filterBounds(ee.Geometry.Point(-90.70, 34.71))
.filterDate('2020-07-01', '2020-09-01');
print('Collection', col);
// Sort the collection in ASCENDING order of image cloud cover.
var colCldSortAsc = col.sort('CLOUD_COVER');
print('Cloud cover ascending', colCldSortAsc);
// Display the image with the least cloud cover.
var visParams = {
bands: ['B4', 'B3', 'B2'],
min: 0.01,
max: 0.25
};
Map.setCenter(-90.70, 34.71, 9);
Map.addLayer(colCldSortAsc.first(), visParams, 'Least cloudy');
// Sort the collection in DESCENDING order of image cloud cover.
var colCldSortDesc = col.sort('CLOUD_COVER', false);
print('Cloud cover descending', colCldSortDesc);
// Display the image with the most cloud cover.
Map.addLayer(colCldSortDesc.first(), visParams, 'Most cloudy');