ee.Dictionary.rename

Rename elements in a dictionary.

Usage	Returns
Dictionary.rename(from, to, overwrite)	Dictionary

Argument	Type	Details
this: dictionary	Dictionary
from	List	A list of keys to be renamed.
to	List	A list of the new names for the keys listed in the 'from' parameter. Must have the same length as the 'from' list.
overwrite	Boolean, default: false	Allow overwriting existing properties with the same name.

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
});

// Define from-to key name lists for selected keys.
var from = ['B2', 'B3'];
var to = ['Band_2', 'Band_3'];
print('Renamed keys', dict.rename(from, to));

print('Overwrite existing key names, e.g. B3 becomes B1',
      dict.rename({from: ['B3'], to: ['B1'], overwrite: true}));