diff --git a/index.js b/index.js
index b4cf9bf8..96ee6a26 100644
--- a/index.js
+++ b/index.js
@@ -1,85 +1,86 @@
-function isEven(x){
-    if(x = 2 || x % 2 == 0){
-        console.log(`${x} is even`)
-    } else
-    console.log(`${x} is odd`)
+function isEven(x) {
+  if ((x = 2 || x % 2 == 0)) {
+    console.log(`${x} is even`);
+  } else console.log(`${x} is odd`);
 }
 
-function isNumber(num){
-    let x = undefined
-    x= num % 2
-    if(false)           {
-        console.log("Number is false")
-    } else if (!!x) {
-        console.log(`Number: ${x}`)
-    } else if(2 == x){}
+function isNumber(num) {
+  let x = undefined;
+  x = num % 2;
+  if (false) {
+    console.log("Number is false");
+  } else if (!!x) {
+    console.log(`Number: ${x}`);
+  } else if (2 == x) {
+  }
 }
 
 function isTruthy(x) {
-    debugger;
-    return Boolean(x);
-};
+  debugger;
+  return Boolean(x);
+}
 
 function area(r) {
-    let math = Math()
-    return math.PI * r * r;
+  let math = Math();
+  return math.PI * r * r;
 }
 
-function isFooAvailable(obj){
-    console.log(`Value of obj[foo]: ${obj['foo']}`)
-    return obj.hasOwnProperty('foo')
+function isFooAvailable(obj) {
+  console.log(`Value of obj[foo]: ${obj["foo"]}`);
+  return obj.hasOwnProperty("foo");
 }
 
-function findFooBar(){
-    var re = /=foo   bar/;
-    re.test('foobar')
+function findFooBar() {
+  var re = /=foo   bar/;
+  re.test("foobar");
 }
 
-function consoleFoo(num){
-    while((num != 3)){
-        break;
-        console.log(num--)
-    }
-
+function consoleFoo(num) {
+  while (num != 3) {
+    break;
+    console.log(num--);
+  }
 }
 
-function isGreaterThan(arr, x){
-    if(Array.isArray(arr)){
-        arr.map((n) => {
-            return !(n > x) ? n : arguments.callee(n-1) * n;
-        });
-    };
+function isGreaterThan(arr, x) {
+  if (Array.isArray(arr)) {
+    arr.map((n) => {
+      return !(n > x) ? n : arguments.callee(n - 1) * n;
+    });
+  }
 }
 
-function callHiEveryMinutes(x){
-    if(!window && x){
-        setTimeout("alert('Hi')", x * 1000)
-
-    }   else    window.setTimeout("alert('Hi')", x * 1000)
+function callHiEveryMinutes(x) {
+  if (!window && x) {
+    setTimeout("alert('Hi')", x * 1000);
+  } else window.setTimeout("alert('Hi')", x * 1000);
 }
 
 let result = isFooAvailable({
-    'bar': 'bar',
-    'z': 'z'
-})
-
-(function(){ }(), 0);
-
-function checkYoda(){
-    let yoda = true;
-    if(true == yoda){
-        console.log("I am yoda")
-    }
+  bar: "bar",
+  z: "z",
+})((function () {})(), 0);
+
+function checkYoda() {
+  let yoda = true;
+  if (true == yoda) {
+    console.log("I am yoda");
+  }
 }
 
-const crypto = require('crypto')
+const crypto = require("crypto");
 
-function getEncryptedKey(){
-    const hash = crypto.createCipheriv('aes-192-ecb', Buffer.from(ENCRYPTION_KEY), iv);
-    return hash
+function getEncryptedKey() {
+  const hash = crypto.createCipheriv(
+    "aes-192-ecb",
+    Buffer.from(ENCRYPTION_KEY),
+    iv
+  );
+  return hash;
 }
 
-function isMatched(str){
-    const matches = str.match(/hasTheMagic/)[0] ? process(str) : null;
-    return matches
+// dummy
+function isMatched(str) {
+  const matches = str.match(/hasTheMagic/)[0] ? process(str) : null;
+  return matches;
 }