[core/api] added toggle method to FeatureFlags

packages/core/src/api/apis/definitions/featureFlags.ts

@@ -45,6 +45,11 @@ export type FeatureFlagsApi = {
    * Disable an registered feature flag.
    */
   disable(name: FeatureFlagName): void;
+
+  /**
+   * Toggle an registered feature flag on or off.
+   */
+  toggle(name: FeatureFlagName): void;
 };
 
 export const featureFlagsApiRef = new ApiRef<FeatureFlagsApi>({

packages/core/src/api/app/FeatureFlags.tsx

@@ -74,6 +74,10 @@ export class FeatureFlags {
     flags.delete(name);
     this.saveUserEnabledFeatureFlags(flags);
   }
+
+  static toggle(name: FeatureFlagName): void {
+    (this.getItem(name) ? this.disable : this.enable).bind(this)(name);
+  }
 }
 
 /**