expression (Mapbox)

An expression is a formula for calculating a value in a , using the Mapbox GL expression syntax. Expressions can retrieve property values, perform arithmetic calculations, respond to the current , or choose between different options depending on a value. Expressions are expressed as an array, where the first element defines the type of expression. For example, ['get', 'name'] retrieves the name attribute from a .

Your browser is no longer supported. Please upgrade your browser for the best experience. See our browser deprecation post for more details.

You can no longer sign into this site. Go to your ArcGIS portal or the ArcGIS Location Platform dashboard to perform management tasks.

Your ArcGIS portal

Create, manage, and access API keys and OAuth 2.0 developer credentials, hosted layers, and data services.

Your ArcGIS Location Platform dashboard

Manage billing, monitor service usage, and access additional resources.

Learn more about these changes in the What's new in Esri Developers June 2024 blog post.

Close