From 568346beb242efd30afc05c8d4e389b76d62d08c Mon Sep 17 00:00:00 2001
From: Rohit Tanwar <mst10041967@gmail.com>
Date: Mon, 1 Jan 2018 20:51:01 +0530
Subject: [PATCH] add RPN solver

---
 snippets/RPNSolver.md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 snippets/RPNSolver.md

diff --git a/snippets/RPNSolver.md b/snippets/RPNSolver.md
new file mode 100644
index 000000000..e21f42e13
--- /dev/null
+++ b/snippets/RPNSolver.md
@@ -0,0 +1,24 @@
+### RPNSolver
+
+Solves the given reverse polish notation
+```js
+const RPNSolver = RPN => {
+  const isNumeric = str => !isNaN(parseFloat(str)) && isFinite(str);
+  const isOperator = str => ['*','-','+','/','**'].includes(str)
+  let stack = [];
+  let solve  = RPN.replace(/\^/g,'**').split(/\s+/g);
+  solve.forEach(symbol => {
+    isNumeric(symbol) ? stack.push(symbol) :
+          isOperator(symbol) ?
+          (a = stack.pop(),
+          b = stack.pop(),
+          stack.push(eval(a + symbol + b))) : Console.log('Wrong RPN')
+  }
+)
+return stack.pop()
+}
+```
+
+```js
+
+```