fixed typos

snippets/RPNSolver.md

@@ -0,0 +1,24 @@
+### RPNSolver
+
+Solves the given reverse polish notation
+
+``` js
+const RPNSolver = RPN => {
+  const operators = {'*' : (a,b) => a * b, '+' : (a,b) => a + b, '-' : (a,b) => a - b, '/' : (a,b) => a / b, '**': (a,b) => a ** b}
+  let [stack,solve] = [[],RPN.replace(/\^/g,'**').split(/\s+/g).filter(el => !/\s+/.test(el) && el !== '')]
+  solve.forEach(symbol => {
+    if(!isNaN(parseFloat(symbol)) && isFinite(symbol)) {stack.push(symbol)}
+          else if (Object.keys(operators).includes(symbol)) {
+          let [a,b] = [stack.pop(),stack.pop()]
+          stack.push(operators[symbol](parseFloat(b),parseFloat(a)))
+        } else { throw `${symbol} is not a recognized symbol` }
+  }
+)
+ if(stack.length === 1)  return stack.pop()
+  else  throw `${RPN} is not a proper RPN. Please check it and try again`
+}
+```
+
+```js
+
+```

snippets/infixToPostFix.md

@@ -1,4 +1,9 @@
-const infix  = expr => {
+### infixToPostfix
+
+Works perfectly! 
+
+```js
+const infixToPostfix  = expr => {
   let rpn = ''
   let solve = expr.replace(/\^/g,'**').match(/([0-9]+|[\+\(\)\/\-]|\*+)/g).filter(el => !/\s+/.test(el) && el !== '')
   let stack = []
@@ -22,3 +27,7 @@ const infix  = expr => {
   }
   return rpn
 }
+```
+```js
+
+```

snippets/postfixToInfix.md

@@ -1,4 +1,9 @@
-const postFix = RPN => {
+### postfixToInfix
+
+ This one has few errors and does not work properply
+
+```js
+const postfixToInfix = RPN => {
   let convert = RPN.replace(/\^/g,'**').split(/\s+/g).filter(el => !/\s+/.test(el) && el !== '')
   let stack = []
   let result = []
@@ -27,3 +32,7 @@ const postFix = RPN => {
   if(result.length === 1) return result.pop()
   else throw `${RPN} is not a correct RPN`
 }
+```
+```js
+
+```