Apply conditional labels
This is a modified version of the Basic template style.
The data used in this example comes from the
symbollayer, has been modified.
Airport labels are styled using property expressions to style features with a data condition. Labels will include both the full name and the short code if the short code is available.
- Label data: The data for airport labels comes from the
reffield contains short identifier codes for many airports, but not all airports. Read more about Mapbox Streets in the vector tile documentation.
- Styling with expressions: In this example, the airport labels are styled using property expressions to style features using a data condition. Open the
airport-labellayer to see how to check whether a data property exists (in this case the
refproperty). If the property does exist, the label displays the full name (
name) along with the
ref. If the
refproperty does not exist, the label displays just the
namevalue. Read more about styling with data conditions in the Mapbox GL Style Specification.
Looking for more guidance? Check out our step-by-step tutorials.