diff --git a/autosize/autosize-tests.ts b/autosize/autosize-tests.ts
index 74be703a94..a7eea57a62 100644
--- a/autosize/autosize-tests.ts
+++ b/autosize/autosize-tests.ts
@@ -8,3 +8,21 @@ autosize(document.querySelector('textarea'));
 
 // from a single element
 autosize(document.getElementById('my-textarea'));
+
+// update a NodeList
+autosize.update(document.querySelectorAll('textarea'));
+
+// update a single Node
+autosize.update(document.querySelector('textarea'));
+
+// update a single element
+autosize.update(document.getElementById('my-textarea'));
+
+// destroy a NodeList
+autosize.destroy(document.querySelectorAll('textarea'));
+
+// destroy a single Node
+autosize.destroy(document.querySelector('textarea'));
+
+// destroy a single element
+autosize.destroy(document.getElementById('my-textarea'));
diff --git a/autosize/index.d.ts b/autosize/index.d.ts
index 5ea76d0472..0886904e3f 100644
--- a/autosize/index.d.ts
+++ b/autosize/index.d.ts
@@ -1,12 +1,16 @@
 // Type definitions for jquery.autosize 3.0.7
 // Project: http://www.jacklmoore.com/autosize/
-// Definitions by: Aaron T. King <https://github.com/kingdango>
+// Definitions by: Aaron T. King <https://github.com/kingdango>, keika299 <https://github.com/keika299>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 declare namespace autosize {
     interface AutosizeStatic {
         (el: Element): void;
         (el: NodeList): void;
+        update(el: Element): void;
+        update(el: NodeList): void;
+        destroy(el: Element): void;
+        destroy(el: NodeList): void;
     }
 }