refactor: optimize bundle

Author: boschni

src/core/infiniteQueryObserver.ts

@@ -54,17 +54,10 @@ export class InfiniteQueryObserver<
     super(client, options)
   }
 
-  protected init(
-    options: InfiniteQueryObserverOptions<
-      TData,
-      TError,
-      TQueryFnData,
-      TQueryData
-    >
-  ) {
+  protected bindMethods(): void {
+    super.bindMethods()
     this.fetchNextPage = this.fetchNextPage.bind(this)
     this.fetchPreviousPage = this.fetchPreviousPage.bind(this)
-    super.init(options)
   }
 
   setOptions(

src/core/mutationObserver.ts

@@ -44,13 +44,13 @@ export class MutationObserver<
 
     this.client = client
     this.setOptions(options)
+    this.bindMethods()
+    this.updateResult()
+  }
 
-    // Bind exposed methods
+  protected bindMethods(): void {
     this.mutate = this.mutate.bind(this)
     this.reset = this.reset.bind(this)
-
-    // Update result
-    this.updateResult()
   }
 
   setOptions(

src/core/queriesObserver.ts

@@ -41,10 +41,6 @@ export class QueriesObserver extends Subscribable<QueriesObserverListener> {
     }
   }
 
-  hasListeners(): boolean {
-    return this.listeners.length > 0
-  }
-
   destroy(): void {
     this.listeners = []
     this.observers.forEach(observer => {

src/core/queryObserver.ts

@@ -61,20 +61,13 @@ export class QueryObserver<
     this.client = client
     this.options = options
     this.initialDataUpdateCount = 0
+    this.bindMethods()
+    this.setOptions(options)
+  }
 
-    // Bind exposed methods
+  protected bindMethods(): void {
     this.remove = this.remove.bind(this)
     this.refetch = this.refetch.bind(this)
-
-    // Initialize
-    this.init(options)
-  }
-
-  protected init(
-    options: QueryObserverOptions<TData, TError, TQueryFnData, TQueryData>
-  ) {
-    // Set options
-    this.setOptions(options)
   }
 
   protected onSubscribe(): void {