Wednesday 17 April 2019

Mapbox GL JS default state of toggle layers


How do I change the default state (off or on) of a toggle menu in Mapbox GL JS? The code that I'm using came from another question on this site Mapbox GLJS - group layers




























Answer



Since the layers in the map are all off by default, you can change this:


link.className = 'active';

to:


link.className = '';

If you want the state of your toggle to reflect what's in the map, it's a bit more code and you need to wait for the map to load before building the toggles. Here's a modified example that does this:


























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