Use exist method to be consistent with Stack (trekhleb#708)

maitriser-ca · Jan 27, 2022 · 8e8f28f · 8e8f28f
1 parent d227646
commit 8e8f28f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/data-structures/queue/Queue.js b/src/data-structures/queue/Queue.js
@@ -21,7 +21,7 @@ export default class Queue {
    * @return {*}
    */
   peek() {
-    if (!this.linkedList.head) {
+    if (this.isEmpty()) {
       return null;
     }