Add utility functions for various operations

index-1.js

@@ -0,0 +1,85 @@
+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 isTruthy(x) {
+    debugger;
+    return Boolean(x);
+};
+
+function area(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 findFooBar(){
+    var re = /=foo   bar/;
+    re.test('foobar')
+}
+
+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 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")
+    }
+}
+
+const crypto = require('crypto')
+
+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
+}