Data Structures: Create a Stack Class

Data Structures/stackClass.js

@@ -0,0 +1,24 @@
+// https://www.freecodecamp.org/learn/coding-interview-prep/data-structures/create-a-stack-class
+function Stack() {
+  var collection = [];
+  this.print = function () {
+    console.log(collection);
+  };
+  // Only change code below this line
+  this.push = function (elem) {
+    collection.push(elem);
+  };
+  this.pop = function () {
+    return collection.pop();
+  };
+  this.peek = function () {
+    return collection[collection.length - 1];
+  };
+  this.isEmpty = function () {
+    return !collection.length;
+  };
+  this.clear = function () {
+    collection = [];
+  };
+  // Only change code above this line
+}