Basic Challenges Documentation Updates

01-basic-challenges-1/10-remove-duplicates/readme.md

@@ -9,10 +9,10 @@ Write a function called `removeDuplicates` that takes in an array and returns a
 ```js
 /**
  * Returns a new array with duplicates removed.
- * @param {any[]} arr - The array to remove duplicates from.
- * @returns {any[]} - The new array with duplicates removed.
+ * @param {Array<string | boolean | number>} arr - The array to remove duplicates from.
+ * @returns {Array<string | boolean | number>[]} - The new array with duplicates removed.
  */
-function removeDuplicates(arr: any[]): any[];
+function removeDuplicates(arr: Array<string | boolean | number>): Array<string | boolean | number>;
 ```
 
 ### Examples
@@ -25,7 +25,7 @@ removeDuplicates([1, 2, 3, 4, 5, true, 1, 'hello' 2, 3, 'hello', true]); // [1,
 
 ### Constraints
 
-- The array can contain any data type
+- The array can contain strings, numbers or boolean data types.
 
 ### Hints
 

02-basic-challenges-2/01-fizzbuzz-array/readme.md

@@ -14,9 +14,9 @@ In this challenge, you will write a function called `fizzBuzzArray` that takes i
 /**
  * Returns an array of numbers from 1 to the number passed in.
  * @param {number} num - The number to loop up to.
- * @returns {any[]} - The array of numbers.
+ * @returns {Array<string | number>} - The array of strings or numbers.
  */
-function fizzBuzzArray(num: number): any[];
+function fizzBuzzArray(num: number): Array<string | number>;
 ```
 
 ### Examples

03-high-order-array-methods/03-calculate-total-sales/calculate-total-sales-test.js

@@ -1,12 +1,12 @@
-const calculateTotalSalesWithTax = require('./calculate-total-sales.js');
+const calculateTotalSalesWithTax = require("./calculate-total-sales");
 
-test('Calculating total sales amount with tax', () => {
+test("Calculating total sales amount with tax", () => {
   expect(
     calculateTotalSalesWithTax(
       [
-        { name: 'Apple', price: 0.5, quantity: 10 },
-        { name: 'Banana', price: 0.3, quantity: 20 },
-        { name: 'Orange', price: 0.6, quantity: 15 },
+        { name: "Apple", price: 0.5, quantity: 10 },
+        { name: "Banana", price: 0.3, quantity: 20 },
+        { name: "Orange", price: 0.6, quantity: 15 },
       ],
       8
     )
@@ -15,10 +15,10 @@ test('Calculating total sales amount with tax', () => {
   expect(
     calculateTotalSalesWithTax(
       [
-        { name: 'Chocolate', price: 2.5, quantity: 5 },
-        { name: 'Chips', price: 1.2, quantity: 10 },
-        { name: 'Soda', price: 1.0, quantity: 8 },
-        { name: 'Candy', price: 0.5, quantity: 15 },
+        { name: "Chocolate", price: 2.5, quantity: 5 },
+        { name: "Chips", price: 1.2, quantity: 10 },
+        { name: "Soda", price: 1.0, quantity: 8 },
+        { name: "Candy", price: 0.5, quantity: 15 },
       ],
       5
     )