Improve cancelable: consistent-return

tshemsedinov · tshemsedinov · commit 23ea3160478a · 2024-02-16T00:16:12.000+02:00
diff --git a/JavaScript/9-cancelable.js b/JavaScript/9-cancelable.js
@@ -1,10 +1,8 @@
 'use strict';
 
-const cancelable = (f) => {
-  const wrapper = (...args) => {
-    if (f) return f(...args);
-  };
-  wrapper.cancel = () => f = null;
+const cancelable = (fn) => {
+  const wrapper = (...args) => (fn ? fn(...args) : null);
+  wrapper.cancel = () => fn = null;
   return wrapper;
 };
 
