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Adds a given EE object to the map as a layer.

Returns the new map layer.

Map.addLayer(eeObject, visParams, name, shown, opacity)ui.Map.Layer
eeObjectCollection|Feature|Image|RawMapIdThe object to add to the map.
visParamsFeatureVisualizationParameters|ImageVisualizationParameters, optionalThe visualization parameters. For Images and ImageCollection, see for valid parameters. For Features and FeatureCollections, the only supported key is "color", as a CSS 3.0 color string or a hex string in "RRGGBB" format. Ignored when eeObject is a map ID.
nameString, optionalThe name of the layer. Defaults to "Layer N".
shownBoolean, optionalA flag indicating whether the layer should be on by default.
opacityNumber, optionalThe layer's opacity represented as a number between 0 and 1. Defaults to 1.


Code Editor (JavaScript)

// A Sentinel-2 surface reflectance image.
var image = ee.Image('COPERNICUS/S2_SR/20210109T185751_20210109T185931_T10SEG');
Map.setCenter(-121.87, 37.44, 9);

// Set multi-band RGB image visualization parameters. If the "bands" parameter
// is not defined, the first three bands are used.
var rgbVis = {
  bands: ['B11', 'B8', 'B3'],
  min: 0,
  max: 3000
Map.addLayer(image, rgbVis, 'Multi-band RGB image');

// Set band-specific "min" and "max" properties.
var rgbVisBandSpec = {
  bands: ['B11', 'B8', 'B3'],
  min: [0, 75, 150],
  max: [3500, 3000, 2500]
Map.addLayer(image, rgbVisBandSpec, 'Band-specific min/max');

// If you don't specify "min" and "max" properties, they will be determined
// from the data type range, often resulting in an ineffective color stretch.
Map.addLayer('B8'), null, 'Default visParams');

// If an image layer has already been styled, set "visParams" as null.
var imageRgb = image.visualize(rgbVis);
Map.addLayer(imageRgb, null, 'Pre-styled image');

// Use the "palette" parameter with single-band image inputs to define the
// linear color gradient to stretch between the "min" and "max" values.
var singleBandVis = {
  min: 0,
  max: 3000,
  palette: ['blue', 'yellow', 'green']
Map.addLayer('B8'), singleBandVis, 'Single-band palette');

// Images within ImageCollections are automatically mosaicked according to mask
// status and image order. The last image in the collection takes priority,
// invalid pixels are filled by valid pixels in preceding images.
var imageCol = ee.ImageCollection('COPERNICUS/S2_SR')
                   .filterDate('2021-03-01', '2021-04-01');
Map.addLayer(imageCol, rgbVis, 'ImageCollection mosaic');

// FeatureCollection, Feature, and Geometry objects can be styled using the
// "color" parameter.
var featureCol = ee.FeatureCollection('WCMC/WDPA/current/polygons');
Map.addLayer(featureCol, {color: 'purple'}, 'FeatureCollection');