diff --git a/packages/core/src/utils/markHasAttributes.ts b/packages/core/src/utils/markHasAttributes.ts
index e07d1305..3ea639bb 100644
--- a/packages/core/src/utils/markHasAttributes.ts
+++ b/packages/core/src/utils/markHasAttributes.ts
@@ -1,15 +1,13 @@
 import { EditorState } from 'prosemirror-state'
 import { MarkType } from 'prosemirror-model'
 import getMarkAttrs from './getMarkAttrs'
+import { AnyObject } from '../types'
 
-export default function markHasAttributes(state: EditorState, type: MarkType, attrs?: { [key: string]: any }): boolean {
-  if (attrs === undefined || Object.keys(attrs).length === 0) {
-    return true
-  }
+export default function markHasAttributes(state: EditorState, type: MarkType, attrs: AnyObject) {
+  const originalAttrs = getMarkAttrs(state, type)
 
-  const originalAttrs: { [key: string]: any } = getMarkAttrs(state, type)
-
-  return Object.keys(attrs).filter((key: string) => {
-    return attrs[key] === originalAttrs[key]
-  }).length > 0
+  return !!Object
+    .keys(attrs)
+    .filter(key => attrs[key] === originalAttrs[key])
+    .length
 }
diff --git a/packages/core/src/utils/markIsActive.ts b/packages/core/src/utils/markIsActive.ts
index bf72f643..11fdba46 100644
--- a/packages/core/src/utils/markIsActive.ts
+++ b/packages/core/src/utils/markIsActive.ts
@@ -2,7 +2,7 @@ import { EditorState } from 'prosemirror-state'
 import { MarkType } from 'prosemirror-model'
 import markHasAttributes from './markHasAttributes'
 
-export default function markIsActive(state: EditorState, type: MarkType, attrs?: {}) {
+export default function markIsActive(state: EditorState, type: MarkType, attrs = {}) {
   const {
     from,
     $from,