IEnumerable.first Method

Returns the first element in the collection.

Namespace: MindFusion.Mapping
Package: IEnumerable.js

 Syntax

JavaScript

function first ()

 Return Value

Object. The first element in the collection.

 Example

The following code creates a DecorationLayer and adds Marker instances to it. Then it gets the first one. The decorations property is of type ObservableCollection, which derives from IEnumerable.

JavaScript

var m = MindFusion.Mapping;var markers = new m.DecorationLayer("Images");// create some markers with images
var mark = new m.Marker(new m.LatLong(-22.951916, -43.210487));
mark.imageSrc = "./images/christ_redeemer.png";
mark.text = "Christ the Redeemer";
markers.decorations.add(mark);mark = new m.Marker();
mark.location = new m.LatLong(41.89021, 12.492231);
mark.imageSrc = "./images/colosseum100.png";
mark.text = "Colloseum";
markers.decorations.add(mark);
...........................var placesToSee = markers.decorations.first();