feat: [useComponents] add hasComponent method

feat: [useComponents] add `hasComponent` method

Author: akai

src/components/ComponentsProvider/ComponentsContext.ts

@@ -3,5 +3,6 @@ import { ComponentsContextInterface } from './interface';
 
 export const ComponentsContext = React.createContext<ComponentsContextInterface>({
   addComponent: () => {},
+  hasComponent: () => false,
   getComponent: () => null,
 });

src/components/ComponentsProvider/index.tsx

@@ -20,6 +20,10 @@ export const ComponentsProvider: React.FC<ComponentsProviderProps> = (props) =>
     componentsRef.current[code] = val;
   }
 
+  function hasComponent(code: string) {
+    return componentsRef.current.hasOwnProperty(code);
+  }
+
   function getComponent(code: string, callback: GetComponentCallback = () => {}) {
     const comp = componentsRef.current[code];
 
@@ -71,7 +75,7 @@ export const ComponentsProvider: React.FC<ComponentsProviderProps> = (props) =>
   }
 
   return (
-    <ComponentsContext.Provider value={{ addComponent, getComponent }}>
+    <ComponentsContext.Provider value={{ addComponent, hasComponent, getComponent }}>
       {children}
     </ComponentsContext.Provider>
   );

src/components/ComponentsProvider/interface.ts

@@ -38,6 +38,7 @@ export interface GetComponentCallback {
 
 export interface ComponentsContextInterface {
   addComponent: (code: string, value: ComponentInterface) => void;
+  hasComponent: (code: string) => boolean;
   getComponent: (
     code: string,
     callback?: GetComponentCallback,