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Data visualization maps

Streets & transport maps

Satellite maps

Outdoor & topo maps

Explore map catalog

Back

Create maps

Design and customize your own maps

Design custom maps Explore data catalog

Back

Build applications

Create powerful apps with our versatile SDK

Interactive maps Visualize your data Mobile SDK Display weather Generate static maps 3D maps

Back

Location services

Powerful map searching and geocoding services

Search & Geocoding Locate IP addresses Transform coordinates

Back

Bring your data

Enrich maps with your own data

Host & process geodata Georeferencing Edit vector data GeoSplats

Back

On-prem

Secure self-hosted mapping solutions

Host and serve mapsserver Get map data Process geodataengine

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News Careers About us Open-source Contacts

Pricing Resources

Documentation JavaScript SDK Mobile SDKs API reference YouTube channel Contact support Connect25 Conference

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MapTiler SDK JS

Function isExpressionFilter

isExpressionFilter(filter: any): filter is ExpressionFilterSpecification
Parameters
- filter: any
Returns filter is ExpressionFilterSpecification

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isExpressionFilter