add getNodeAttrs

packages/core/src/utils/getNodeAttrs.ts

@@ -0,0 +1,19 @@
+import { EditorState } from 'prosemirror-state'
+import { Node, NodeType } from 'prosemirror-model'
+
+export default function getNodeAttrs(state: EditorState, type: NodeType) {
+  const { from, to } = state.selection
+  let nodes: Node[] = []
+
+  state.doc.nodesBetween(from, to, node => {
+    nodes = [...nodes, node]
+  })
+
+  const node = nodes.find(nodeItem => nodeItem.type.name === type.name)
+
+  if (node) {
+    return node.attrs
+  }
+
+  return {}
+}