@@ -0,0 +1,27 @@
+function checkParenthesis(input = "") {
+  var open = [];
+  for (var i = 0; i < input.length; i++) {
+    switch (input[i]) {
+      case "]":
+        if ("[" == open[open.length - 1]) {
+          open.pop();
+        }
+      case "}":
+        if ("{" == open[open.length - 1]) {
+          open.pop();
+        }
+      case ")":
+        if ("(" == open[open.length - 1]) {
+          open.pop();
+        }
+        break;
+      default:
+        open.push(input[i]);
+        break;
+    }
+  }
+  if (open.length == 0) console.log("Yes");
+  else console.log("No");
+}
+
+checkParenthesis("({}[])");