FieldsIndex

FieldsIndex

AMD: require(["esri/layers/support/FieldsIndex"], (FieldsIndex) => { /* code goes here */ });

ESM: import FieldsIndex from "@arcgis/core/layers/support/FieldsIndex";

Class: esri/layers/support/FieldsIndex

Since: ArcGIS API for JavaScript 4.12

This class provides convenient methods that can be used to make case-insensitive lookups for a field by its name. It also provides more information such as the list of date fields in a layer.

Constructors

new FieldsIndex(properties)

Parameter

properties Object

optional

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

Property Overview

Name	Type	Summary	Class
	Field []\|Object []	An array of date fields or field json objects. more details	FieldsIndex

Property Details

dateFields Field []|Object []

An array of date fields or field json objects.

Default Value:[]

Method Overview

Return Type	Summary	Class
Field	Returns a field with the specified field name. more details	FieldsIndex
Boolean	Checks if a field with the specified field name exists in the layer. more details	FieldsIndex
Boolean	Checks if a field with the specified field name is a date field. more details	FieldsIndex

Method Details

get(fieldName){Field}

Returns a field with the specified field name.

Parameter

fieldName String

The name of the field. The name is case-insensitive.

Returns

Type	Description
Field	Returns a field with a given name.

has(fieldName){Boolean}

Checks if a field with the specified field name exists in the layer.

Parameter

fieldName String

The name of the field. The name is case-insensitive.

Returns

Type	Description
Boolean	Returns `true` if the field exists otherwise returns `false`.

isDateField(fieldName){Boolean}

Checks if a field with the specified field name is a date field.

Parameter

fieldName String

The name of the field.

Returns

Type	Description
Boolean	Returns `true` if the field type is date otherwise returns `false`.

ArcGIS API for JavaScriptAPI Reference

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