ParameterValue

AMD: require(["esri/rest/support/ParameterValue"], (ParameterValue) => { /* code goes here */ });
ESM: import ParameterValue from "@arcgis/core/rest/support/ParameterValue";
Class: esri/rest/support/ParameterValue
Inheritance: ParameterValue Accessor
Since: ArcGIS API for JavaScript 4.0

Represents the output parameters of a geoprocessor method and their properties and values.

See also

Property Overview

Any properties can be set, retrieved or listened to. See the Working with Properties topic.
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Name Type Summary Class
String

Specifies the parameter's data type.

more details
ParameterValue
String

The name of the class.

more details
Accessor
Boolean|DataFile|Date|Number|FeatureSet|Field|LinearUnit|RasterData|String|Array<(boolean|DataFile|Date|number|FeatureSet|Field|LinearUnit|RasterData|string)>

The value of the parameter.

more details
ParameterValue

Property Details

dataType String

Specifies the parameter's data type.

Possible Values:"boolean"|"data-file"|"date"|"double"|"feature-record-set-layer"|"field"|"linear-unit"|"long"|"raster-data"|"raster-data-layer"|"record-set"|"string"|"multi-value"

declaredClass Stringreadonly inherited
Since: ArcGIS API for JavaScript 4.7

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

The value of the parameter. The data structure of this value depends on the dataType.

Data Type JavaScript Type
boolean Boolean
data-file DataFile
date Date
double Number (float)
feature-record-set-layer FeatureSet
field Field
linear-unit LinearUnit
long Number (int)
raster-data RasterData
raster-data-layer RasterData
record-set FeatureSet
string String
multi-value Object[] - An array of any of the objects listed above.

Method Overview

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Name Return Type Summary Class

Adds one or more handles which are to be tied to the lifecycle of the object.

more details
Accessor
*

Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product.

more details
ParameterValue
Boolean

Returns true if a named group of handles exist.

more details
Accessor

Removes a group of handles owned by the object.

more details
Accessor
Object

Converts an instance of this class to its ArcGIS portal JSON representation.

more details
ParameterValue

Method Details

addHandles(handleOrHandles, groupKey)inherited
Since: ArcGIS API for JavaScript 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 }
);

// Handle gets removed when the object is destroyed.
this.addHandles(handle);
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(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(groupKey){Boolean}inherited
Since: ArcGIS API for JavaScript 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(groupKey)inherited
Since: ArcGIS API for JavaScript 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(){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.

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