fix: fixed lint issues

Author: biswalom22

src/editor/DOMEventHandlers.ts

@@ -35,16 +35,16 @@ export class DOMEventHandlers {
     // }
     if (DOMEventHandlers.instance) {
       try {
-        DOMEventHandlers.instance.destroy();
+        DOMEventHandlers.instance.destroy()
       } catch (e) {
-        console.warn("Cleaning up old editor instance");
+        console.warn('Cleaning up old editor instance')
       }
     }
     DOMEventHandlers.instance = new Editor(container, data, options)
     DOMEventHandlers.instance.command.executeSetLocale('en')
     DOMEventHandlers.instance.register.langMap('en', en)
 
-    return DOMEventHandlers.instance;
+    return DOMEventHandlers.instance
   }
 
   static handleUndo() {

src/editor/core/draw/Draw.ts

@@ -143,6 +143,8 @@ export class Draw {
   private intersectionPageNo: number
   private lazyRenderIntersectionObserver: IntersectionObserver | null
 
+  private isDestroyed = false;
+
   constructor(
     rootContainer: HTMLElement,
     options: DeepRequired<IEditorOption>,
@@ -357,6 +359,7 @@ export class Draw {
   }
 
   public setIntersectionPageNo(payload: number) {
+    if (this.isDestroyed) return
     this.intersectionPageNo = payload
     if (this.listener.intersectionPageNoChange) {
       this.listener.intersectionPageNoChange(this.intersectionPageNo)
@@ -1716,6 +1719,7 @@ export class Draw {
   }
 
   public render(payload?: IDrawOption) {
+    if (this.isDestroyed) return
     const { header, footer } = this.options
     const {
       isSubmitHistory = true,
@@ -1849,6 +1853,7 @@ export class Draw {
   }
 
   public destroy() {
+    this.isDestroyed = true
     this.container.remove()
     this.globalEvent.removeEvent()
     this.scrollObserver.removeEvent()

src/editor/core/range/RangeManager.ts

@@ -318,6 +318,7 @@ export class RangeManager {
   }
 
   public setRangeStyle() {
+    if (!this.eventBus || !this.listener) return
     const rangeStyleChangeListener = this.listener.rangeStyleChange
     const isSubscribeRangeStyleChange =
       this.eventBus.isSubscribe('rangeStyleChange')