Finished all solutions except myMap and false for largestEl function

scripts.js

@@ -1,32 +1,74 @@
 // FILL IN THE FUNCTIONS BELOW
-
+'use strict'
 var sprintFunctions = {
-  largestEl: function(){  
-    // your code here
+  largestEl: function(arr){
+    let bigEl = arr[0];
+    for(let i=1; i< arr.length; i++) {
+      if(bigEl.length<arr[i].length) {
+        bigEl=arr[i];
+      }
+    }
+    return bigEl;
   },
-
-  reversed: function(){  
-    // your code here
+
+  reversed: function(str){
+    let newStr="";
+    for(let i=str.length-1; i >= 0; i--) {
+      newStr += str[i];
+    }
+    return newStr;
   },
 
-  loudSnakeCase: function(){  
-    // your code here
+  loudSnakeCase: function(str){
+    let newStr = str.split(" ").filter(Boolean);
+    for(let i = 0; i<newStr.length; i++) {
+      newStr[i] = newStr[i].replace(/\W/g,"");
+      newStr[i] = newStr[i][0].toUpperCase() + newStr[i].slice(1);
+    }
+    return newStr.join("_");
   },
 
-  compareArrays: function(){ 
-    // your code here (replace the return)
-    return "Finish compareArrays first!" 
+  compareArrays: function(arr,comparedArr){
+    return arr.every((x,i)=> x===comparedArr[i]);
   },
 
-  fizzBuzz: function(){  
-    // your code here
+  fizzBuzz: function(n){
+    const arr = [];
+    for(let i =1; i<=n; i++) {
+      i % 3 === 0 && i % 5 === 0 ? arr.push("FIZZBUZZ"):
+      i % 3 === 0 ? arr.push("FIZZ"):
+      i % 5 === 0 ? arr.push("BUZZ"):arr.push(i);
+    }
+    return arr;
   },
 
-  myMap: function(){  
-    // your code here
+  myMap: function(arr,func){
   },
 
-  primes: function(){  
-    // your code here
+  primes: function(n){
+
+    let sqrtNum;
+    const storePrimes = [];
+    if(n===2) {return [2]}
+    if(n>2) {storePrimes.push(2,3)}
+
+    for(let i =1; i<n; i++) {
+      sqrtNum = Math.sqrt(i);
+    if(Number.isInteger(sqrtNum) === true || i % 2 === 0 || i % 3 ===0) {
+      continue;
+      }
+    storePrimes.push(i);
+  }
+
+return storePrimes;
   },
-}
+}
+
+console.log(sprintFunctions.largestEl(["dragon","bunny","dodragog","monkey"]));
+console.log(sprintFunctions.reversed("dragon"));
+console.log(sprintFunctions.loudSnakeCase("how is   .th%&e w#!eather"));
+console.log(sprintFunctions.compareArrays([1,2,3],[1,2,3]));
+console.log(sprintFunctions.fizzBuzz(15));
+console.log(sprintFunctions.myMap([1,2,3,4,5]));
+console.log(sprintFunctions.primes(25));
+console.log(sprintFunctions.myMap([5,7,3,2]));