Vera-Fileyeva-week1-day4-lab1

src/functions-and-arrays.js

@@ -1,34 +1,71 @@
 // Iteration 1 | Find the Maximum
-function maxOfTwoNumbers() {}
-
-
-
+function maxOfTwoNumbers(num1, num2) {
+  return num1 > num2 ? num1 : num2;
+}
 
 // Iteration 2 | Find the Longest Word
-const words = ["mystery", "brother", "aviator", "crocodile", "pearl", "orchard", "crackpot"];
-
-function findLongestWord() {}
-
-
-
+const words = [
+  "mystery",
+  "brother",
+  "aviator",
+  "crocodile",
+  "pearl",
+  "orchard",
+  "crackpot",
+];
+
+function findLongestWord(arr) {
+  if (arr.length == 0) return null;
+
+  let maxLength = 0;
+  let theLongestInd = -1;
+
+  arr.forEach((el, ind) => {
+    if (el.length > maxLength) {
+      maxLength = el.length;
+      theLongestInd = ind;
+    }
+  });
+  return arr[theLongestInd];
+}
 
 // Iteration 3 | Sum Numbers
 const numbers = [6, 12, 1, 18, 13, 16, 2, 1, 8, 10];
 
-function sumNumbers() {}
-
-
-
+function sumNumbers(arr) {
+  let sum = 0;
+  arr.forEach((el) => {
+    sum += el;
+  });
+  return sum;
+}
 
 // Iteration 4 | Numbers Average
 const numbers2 = [2, 6, 9, 10, 7, 4, 1, 9];
 
-function averageNumbers() {}
-
-
-
+function averageNumbers(arr) {
+  if (arr.length === 0) return 0;
+  return sumNumbers(arr) / arr.length;
+}
 
 // Iteration 5 | Find Elements
-const words2 = ["machine", "subset", "trouble", "starting", "matter", "eating", "truth", "disobedience"];
-
-function doesWordExist() {}
+const words2 = [
+  "machine",
+  "subset",
+  "trouble",
+  "starting",
+  "matter",
+  "eating",
+  "truth",
+  "disobedience",
+];
+
+function doesWordExist(array, word) {
+  if (array.length === 0) return null;
+
+  let doesExist = false;
+  array.forEach((el) => {
+    if (el === word) doesExist = true;
+  });
+  return doesExist;
+}