ArcadeLabelExpression

An expression script using the Arcade language. The Arcade label expression property must contain a syntactically correct Arcade script expression.

An example expression that combines text with a field value is

"State: " + $feature.State_Name

Note that quotes are needed around the literal text. See https://links.esri.com/arcade for full documentation on the Arcade scripting language and its function library.

Any Arcade functions allowed for the Labeling profile can be used in a label arcade expression. Other functions (for example, FeatureSet functions) are potentially too slow to be used in a dynamic label evaluation. Warning: If the expression attempts to use attributes which don't exist then no label will be produced. This is distinct from the attribute existing but having a null or empty value, which can form part of the produced text label.

Since

200.1.0

Constructors

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constructor(arcadeExpression: ArcadeExpression)

Creates a label arcade expression object using the ArcadeExpression.expression.

constructor(arcadeString: String = "")

Creates a label arcade expression object with a specified Arcade expression script string.

Inherited properties

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The label expression script string. The expression is expected to be a complete, self-contained label expression in the language specified by the label expression subclass object. Warning: If the expression attempts to use attributes which don't exist then no label will be produced. This is distinct from the attribute existing but having a null or empty value, which can form part of the produced text label.

Functions

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open override fun clone(): ArcadeLabelExpression