Accessing a specific property/column in FeatureCollection in Google Earth Engine

Question

I am trying to write a function that when a region is clicked on the map, a dot will show and will highlight the region, and show a property in its FeatureCollection (UHIAdded). Here is my code:

lat.setValue('Lat: ' + coords.lat.toFixed(2));
lon.setValue('Lon: ' + coords.lon.toFixed(2));
Dayall.setValue('Annual daytime UHI: ' + ee.Number(UHIAdded.filterBounds(ee.Geometry.Point(coords.lon, coords.lat)).get('UHIday')));
print(UHIAdded.filterBounds(ee.Geometry.Point(coords.lon, coords.lat)).getArray('Area')); 

The result showed up as this:

Lat: 37.84
Lon: -120.81

Annual daytime UHI: ee.Number({ "type": "Invocation", "arguments": { "object": { "type": "Invocation", "arguments": { "collection": { "type": "Invocation", "arguments": { "collection": { "type": "Invocation", "arguments": { "collection": { "type": "Invocation", "arguments": { "tableId":......)

and the printed value is

Null

Why won't FeatureCollection.get work and how do I access the specific property/column

Answer 1

Without all of your code and a working example if will be difficult, but probably something like this:

Map.onClick(function(coords) {
    var point = ee.Geometry.Point(coords.lon, coords.lat);
    Map.addLayer(point)
})