No frills implementation of a stack.

nirupa-kumar · nirupa-kumar · commit 5136e4d3342e · 2018-08-09T12:24:57.000-07:00
diff --git a/DataStructureImplementations/stackBasic.js b/DataStructureImplementations/stackBasic.js
@@ -0,0 +1,41 @@
+var stack = function(){
+  this.stackArray = [];
+
+  this.push = function(num){
+    this.stackArray.push(num);
+  }
+
+  this.pop = function(){
+    if(this.stackArray.length==0){
+      return "Error: No elements left in array";
+    }
+  return this.stackArray.pop();
+  }
+
+  this.peek = function(){
+    if(this.stackArray.length==0){
+      return "Error: No elements present in array";
+    }
+    return this.stackArray[this.stackArray.length-1];
+  }
+  this.isEmpty = function(){
+    if(this.stackArray.length==0){
+      return true;
+    }
+    return false;
+  }
+
+  this.printStack = function(){
+    console.log(this.stackArray);
+  }
+
+}
+
+var stackTest = new stack();
+stackTest.stackArray = [1,2,4];
+stackTest.push(5);
+stackTest.printStack();
+console.log("Peek: " + stackTest.peek());
+console.log("IsEmpty: " + stackTest.isEmpty());
+console.log("Popped: " + stackTest.pop());
+
