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+## to access the editor
+```
+import { useEditor } from "novel";
+const editor = useEditor()
+```
+
+## to get previous text
+```
+import { getPrevText } from "novel/utils";
+const pos = editor.state.selection.from;
+const text = getPrevText(editor, pos);
+```
+
+## selected content into markdown format 
+```
+const slice = editor.state.selection.content();
+const text = editor.storage.markdown.serializer.serialize(slice.content);
+```
+
+## replace Selection 
+```
+const selection = editor.view.state.selection;
+editor.chain().focus()
+  .insertContentAt(
+    {
+      from: selection.from,
+      to: selection.to,
+    },
+    completion,
+  )
+  .run();
+```
+
+
+## to insert after
+```
+const selection = editor.view.state.selection;
+editor
+  .chain()
+  .focus()
+  .insertContentAt(selection.to + 1, completion)
+  .run();
+```