Utility Functions

Author: PB2204

STRUCTURE.md

@@ -80,11 +80,6 @@ JS-DSA/
 |   |-- randomized/
 |   |   |-- randomizedQuickSort.js
 |   |   |-- randomizedPrimalityTesting.js
-|   |-- cryptography/
-|       |-- rsaEncryption.js
-|       |-- rsaDecryption.js
-|       |-- aesEncryption.js
-|       |-- aesDecryption.js
 |
 |-- utils/
 |   |-- utilityFunctions.js
@@ -175,14 +170,9 @@ JS-DSA/
 |   |   |-- randomized/
 |   |   |   |-- randomizedQuickSort.test.js
 |   |   |   |-- randomizedPrimalityTesting.test.js
-|   |   |-- cryptography/
-|   |       |-- rsaEncryption.test.js
-|   |       |-- rsaDecryption.test.js
-|   |       |-- aesEncryption.test.js
-|   |       |-- aesDecryption.test.js
 |
 |-- docs/
     |-- data-structures.md
     |-- algorithms.md
     |-- usage-examples.md
-    ```
+```

index.js

@@ -57,6 +57,7 @@ const LogisticRegression = require('./algorithms/ml-statistical/logisticRegressi
 const DecisionTree = require('./algorithms/ml-statistical/decisionTrees');
 const RandomizedQuickSort = require('./algorithms/sorting/randomizedQuickSort');
 const RandomizedPrimalityTesting = require('./algorithms/randomized/randomizedPrimalityTesting');
+const UtilityFunctions = require('./utils/utilityFunctions');
 // Import other data structures and algorithms as needed
 
 module.exports = {
@@ -120,5 +121,6 @@ module.exports = {
     DecisionTree,
     RandomizedQuickSort,
     RandomizedPrimalityTesting,
+    UtilityFunctions,
     // Export other data structures and algorithms as well
 };

test/utils/utilityFunctions.test.js

@@ -0,0 +1,31 @@
+const UtilityFunctions = require('../../utils/utilityFunctions');
+
+describe('UtilityFunctions', () => {
+    describe('sum', () => {
+        it('should return the sum of an array of numbers', () => {
+            const numbers = [1, 2, 3, 4, 5];
+            const result = UtilityFunctions.sum(numbers);
+            expect(result).toBe(15);
+        });
+
+        it('should handle an empty array', () => {
+            const numbers = [];
+            const result = UtilityFunctions.sum(numbers);
+            expect(result).toBe(0);
+        });
+    });
+
+    describe('average', () => {
+        it('should return the average of an array of numbers', () => {
+            const numbers = [2, 4, 6, 8, 10];
+            const result = UtilityFunctions.average(numbers);
+            expect(result).toBe(6);
+        });
+
+        it('should handle an empty array', () => {
+            const numbers = [];
+            const result = UtilityFunctions.average(numbers);
+            expect(result).toBe(0);
+        });
+    });
+});

utils/utilityFunctions.js

@@ -0,0 +1,15 @@
+class UtilityFunctions {
+    static sum(arr) {
+        return arr.reduce((acc, current) => acc + current, 0);
+    }
+
+    static average(arr) {
+        if (arr.length === 0) {
+            return 0;
+        }
+        const total = this.sum(arr);
+        return total / arr.length;
+    }
+}
+
+module.exports = UtilityFunctions;