Optimise and remove useless duplicate

timursevimli · tshemsedinov · commit 4b82a88ea4e2 · 2023-12-02T22:42:41.000+02:00
diff --git a/JavaScript/2-queue.js b/JavaScript/2-queue.js
@@ -9,13 +9,9 @@ class Queue {
   put(item) {
     const last = this.last;
     const element = { next: null, item };
-    if (last) {
-      last.next = element;
-      this.last = element;
-    } else {
-      this.first = element;
-      this.last = element;
-    }
+    if (last) last.next = element;
+    else this.first = element;
+    this.last = element;
   }
 
   pick() {
diff --git a/JavaScript/3-dequeue.js b/JavaScript/3-dequeue.js
@@ -9,13 +9,9 @@ class Dequeue {
   push(item) {
     const last = this.last;
     const element = { prev: last, next: null, item };
-    if (last) {
-      last.next = element;
-      this.last = element;
-    } else {
-      this.first = element;
-      this.last = element;
-    }
+    if (last) last.next = element;
+    else this.first = element;
+    this.last = element;
   }
 
   pop() {
@@ -34,13 +30,9 @@ class Dequeue {
   unshift(item) {
     const first = this.first;
     const element = { prev: null, next: first, item };
-    if (first) {
-      first.prev = element;
-      this.first = element;
-    } else {
-      this.first = element;
-      this.last = element;
-    }
+    if (first) first.prev = element;
+    else this.last = element;
+    this.first = element;
   }
 
   shift() {
