Implement stack data structure using object

Author: gopinav

stack-object.js

@@ -0,0 +1,34 @@
+class Stack {
+  constructor() {
+    this.items = {};
+    this.head = 0;
+  }
+
+  push(element) {
+    this.items[this.head] = element;
+    this.head++;
+  }
+
+  pop() {
+    const item = this.items[this.head - 1];
+    delete this.items[this.head - 1];
+    this.head--;
+    return item;
+  }
+
+  peek() {
+    return this.items[this.head - 1];
+  }
+
+  size() {
+    return this.head;
+  }
+
+  isEmpty() {
+    return this.head === 0;
+  }
+
+  print() {
+    console.log(this.items);
+  }
+}