Calling map.getLayoutProperty will throw an undefined error when layer doesn't exist

[donnyv]

Motivation

Calling map.getLayoutProperty should not throw an undefined error when layer name doesn't exist.

Design Alternatives

It should return null.

Design

I thought I was having issues with my map object because an undefined error was being thrown.

Implementation

javascript

I was using version 0.50.0

[ryanhamley]

Thanks for reporting this @donnyv getLayoutProperty definitely shouldn't crash the map in this situation. setLayoutProperty handles this exact situation by throwing a non-fatal error warning that the layer doesn't exist so I submitted a PR to allow getLayoutProperty to do the same thing. The call to getLayoutProperty will then return undefined.