add isNodeEmpty helper method

packages/core/src/Editor.ts

@@ -7,6 +7,7 @@ import getMarkAttributes from './helpers/getMarkAttributes'
 import isActive from './helpers/isActive'
 import removeElement from './utilities/removeElement'
 import getHTMLFromFragment from './helpers/getHTMLFromFragment'
+import isNodeEmpty from './helpers/isNodeEmpty'
 import createStyleTag from './utilities/createStyleTag'
 import CommandManager from './CommandManager'
 import ExtensionManager from './ExtensionManager'
@@ -415,11 +416,8 @@ export class Editor extends EventEmitter {
   /**
    * Check if there is no content.
    */
-  public isEmpty(): boolean {
+  public get isEmpty(): boolean {
-    const defaultContent = this.state.doc.type.createAndFill()?.toJSON()
+    return isNodeEmpty(this.state.doc)
-    const content = this.getJSON()
-
-    return JSON.stringify(defaultContent) === JSON.stringify(content)
   }
 
   /**

packages/core/src/helpers/isNodeEmpty.ts

@@ -0,0 +1,8 @@
+import { Node as ProseMirrorNode } from 'prosemirror-model'
+
+export default function isNodeEmpty(node: ProseMirrorNode): boolean {
+  const defaultContent = node.type.createAndFill()?.toJSON()
+  const content = node.toJSON()
+
+  return JSON.stringify(defaultContent) === JSON.stringify(content)
+}

packages/core/src/index.ts

@@ -18,6 +18,7 @@ export { default as getMarkAttributes } from './helpers/getMarkAttributes'
 export { default as isActive } from './helpers/isActive'
 export { default as isMarkActive } from './helpers/isMarkActive'
 export { default as isNodeActive } from './helpers/isNodeActive'
+export { default as isNodeEmpty } from './helpers/isNodeEmpty'
 export { default as isNodeSelection } from './helpers/isNodeSelection'
 export { default as isTextSelection } from './helpers/isTextSelection'
 export { default as findParentNodeClosestToPos } from './helpers/findParentNodeClosestToPos'