Bookmark | API Reference | ArcGIS Maps SDK for JavaScript 4.30

A bookmark is a saved map extent that allows end users to quickly navigate to a particular area of interest using the Bookmarks widget. They are usually defined part of the WebMap.

See also

Bookmarks widget
Bookmarks in the Web Map specification

Constructors

Bookmark Constructor new Bookmark(properties)

Parameter

properties Object

optional

See the properties for a list of all the properties that may be passed into the constructor.

Property Overview

Any properties can be set, retrieved or listened to. See the Working with Properties topic.

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Type	Summary	Class
String	The name of the class.	Accessor
String	The name of the bookmark item.	Bookmark
Object	The URL for a thumbnail image.	Bookmark
TimeExtent	The time extent of the bookmark item.	Bookmark
Viewpoint	The viewpoint of the bookmark item.	Bookmark

Property Details

declaredClass Inherited Property declaredClass Stringreadonly Inherited from Accessor

The name of the class. The declared class name is formatted as esri.folder.className.

name Property name String

The name of the bookmark item. Used as a label in the Bookmarks widget.

thumbnail Property thumbnail Object

The URL for a thumbnail image.

Property: url String

optional
URL to a thumbnail to display.

timeExtent Property timeExtent TimeExtent Since: ArcGIS Maps SDK for JavaScript 4.22 Bookmark since 4.8, timeExtent added at 4.22.

The time extent of the bookmark item.

Example

// create a bookmark with a time extent starting December 10, 1996
//   and ending December 25, 1996
const bookmark = new Bookmark({
   timeExtent: {
     start: new Date(1996, 11, 10),
     end: new Date(1996, 11, 25)
   }
})

viewpoint Property viewpoint Viewpoint Since: ArcGIS Maps SDK for JavaScript 4.17 Bookmark since 4.8, viewpoint added at 4.17.

The viewpoint of the bookmark item. Defines the rotation, scale, and target geometry of the bookmark.

Bookmarks can only be saved to the WebMap when their viewpoint.targetGeometry is an Extent. When defined manually on the Bookmarks widget, the targetGeometry can be a Point, but scale must also be defined.

Method Overview

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Return Type	Summary	Class
	Adds one or more handles which are to be tied to the lifecycle of the object.	Accessor
*	Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product.	Bookmark
Boolean	Returns true if a named group of handles exist.	Accessor
	Removes a group of handles owned by the object.	Accessor
Object	Converts an instance of this class to its ArcGIS portal JSON representation.	Bookmark

Method Details

addHandles Inherited Method addHandles(handleOrHandles, groupKey) Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, addHandles added at 4.25.

Adds one or more handles which are to be tied to the lifecycle of the object. The handles will be removed when the object is destroyed.

// Manually manage handles
const handle = reactiveUtils.when(
  () => !view.updating,
  () => {
    wkidSelect.disabled = false;
  },
  { once: true }
);

this.addHandles(handle);

// Destroy the object
this.destroy();

Parameters

handleOrHandles WatchHandle|WatchHandle []

Handles marked for removal once the object is destroyed.

groupKey *

optional

Key identifying the group to which the handles should be added. All the handles in the group can later be removed with Accessor.removeHandles(). If no key is provided the handles are added to a default group.

fromJSON Method fromJSON(json){*}static

Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product. The object passed into the input json parameter often comes from a response to a query operation in the REST API or a toJSON() method from another ArcGIS product. See the Using fromJSON() topic in the Guide for details and examples of when and how to use this function.

Parameter

json Object

A JSON representation of the instance in the ArcGIS format. See the ArcGIS REST API documentation for examples of the structure of various input JSON objects.

Returns

Type	Description
*	Returns a new instance of this class.

hasHandles Inherited Method hasHandles(groupKey){Boolean} Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, hasHandles added at 4.25.

Returns true if a named group of handles exist.

Parameter

groupKey *

optional

A group key.

Returns

Type	Description
Boolean	Returns `true` if a named group of handles exist.

Example

// Remove a named group of handles if they exist.
if (obj.hasHandles("watch-view-updates")) {
  obj.removeHandles("watch-view-updates");
}

removeHandles Inherited Method removeHandles(groupKey) Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, removeHandles added at 4.25.

Removes a group of handles owned by the object.

Parameter

groupKey *

optional

A group key or an array or collection of group keys to remove.

Example

obj.removeHandles(); // removes handles from default group

obj.removeHandles("handle-group");
obj.removeHandles("other-handle-group");

toJSON Method toJSON(){Object}

Converts an instance of this class to its ArcGIS portal JSON representation. See the Using fromJSON() guide topic for more information.

Returns

Type	Description
Object	The ArcGIS portal JSON representation of an instance of this class.