• Yorick Peterse's avatar
    Support pushing of feature flags to the frontend · 21940d1e
    Yorick Peterse authored
    This adds a method to Gitlab::GonHelper called
    `push_frontend_feature_flag`. This method can be used to easily expose
    the state of a feature flag to Javascript code. For example, using this
    method we may write the following controller code:
    
        before_action do
          push_frontend_feature_flag(:vim_bindings)
        end
    
        def index
          # ...
        end
    
        def edit
          # ...
        end
    
    In Javascript we can then check the state of the flag as follows:
    
        if ( gon.features.vimBindings ) {
          // ...
        }
    
    Fixes https://gitlab.com/gitlab-org/release/framework/issues/17
    21940d1e
feature_flags.md 3.6 KB