Completed answers for 2-mandatory-debug/2.js

Author: Zadri415

Sprint-2/2-mandatory-debug/0.js

@@ -1,14 +1,20 @@
 // Predict and explain first...
 
 // =============> write your prediction here
-
+// It will throw a undefined error
 function multiply(a, b) {
   console.log(a * b);
 }
 
-console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
+//console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`); 
 
 // =============> write your explanation here
+// The function printed the answer but didn't return it, so when it was used in the  template string, it came out as "undefined."
 
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+function multiply(a, b) {
+  return a * b;
+}
+
+console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);

Sprint-2/2-mandatory-debug/1.js

@@ -1,13 +1,20 @@
 // Predict and explain first...
 //  =============> write your prediction here
+// I predict it will throw a undefined error
 
-function sum(a, b) {
+/* function sum(a, b) {
   return;
   a + b;
 }
 
-console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
+console.log(`The sum of 10 and 32 is ${sum(10, 32)}`); */
 
 // =============> write your explanation here
+// The problem was that the semicolon after return, which made the function stop before adding the numbers.
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+function sum(a, b) {
+  return a + b; // Once I put a + b on the same line as return, it worked
+}
+
+console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);

Sprint-2/3-mandatory-implement/1-bmi.js

@@ -16,4 +16,12 @@
 
 function calculateBMI(weight, height) {
     // return the BMI of someone based off their weight and height
-}
+    const bmi = weight / (height * height);
+    return bmi.toFixed(1);
+}
+
+console.log(`Your BMI is ${calculateBMI(68, 1.75)}`);
+// How it works: function calculateBMI(weight, height)
+// Parameters: weight - number, person's weight in kilograms height - number, person's height in meters
+// Returns: The Body Mass Index (BMI), rounded to one decimal place
+

Sprint-2/3-mandatory-implement/2-cases.js

@@ -14,3 +14,6 @@
 // You will need to come up with an appropriate name for the function
 // Use the MDN string documentation to help you find a solution
 // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
+ const greeting = "Hello there."
+
+ console.log(greeting.toUpperCase());

Sprint-2/3-mandatory-implement/3-to-pounds.js

@@ -4,3 +4,16 @@
 // You will need to declare a function called toPounds with an appropriately named parameter.
 
 // You should call this function a number of times to check it works for different inputs
+funnction formatPenceToPounds(penceString) {
+
+    const penceStringWithoutTrailingP = penceString.substring(0, penceString.length - 1);
+
+    const pounds = paddedPenceNumberString.slice(0, -2);
+    const pence = paddedPenceNumberString.slice(-2);
+
+    return `£${pounds}.${pence}`;
+}
+
+console.log(formatPenceToPounds("9p"));
+console.log(formatPenceToPounds("39p"));
+console.log(formatPenceToPounds("399"));

Sprint-2/4-mandatory-interpret/time-format.js

@@ -10,25 +10,36 @@ function formatTimeDisplay(seconds) {
 
   return `${pad(totalHours)}:${pad(remainingMinutes)}:${pad(remainingSeconds)}`;
 }
-
+console.log(formatTimeDisplay(61));
 // You will need to play computer with this example - use the Python Visualiser https://pythontutor.com/visualize.html#mode=edit
 // to help you answer these questions
 
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
 // =============> write your answer here
+// Three times.
 
 // Call formatTimeDisplay with an input of 61, now answer the following:
 
 // b) What is the value assigned to num when pad is called for the first time?
 // =============> write your answer here
+/* The first time pad() runs, it's used for the fours part of the time.
+   Because 61 seconds equals 0 hours, the value given to num is 0 /*
 
 // c) What is the return value of pad is called for the first time?
 // =============> write your answer here
 
+/* The first time pad() runs, it's formatting the hours part of the time.
+   Since the hours value is 0, it turns that into the string "00" by adding a leading zero before returning it /*
+
 // d) What is the value assigned to num when pad is called for the last time in this program?  Explain your answer
 // =============> write your answer here
+/* When the function runs with 61 seconds, the last time pad() is called is for the second part of the time. Since 61 seconds has 1 seconds has 1 second left
+ over after making a full minute, the value passed into pad() is 1. Inside the function, num equals 1, and it gets turned into "01" so the final time shows as 00:01:01 */
 
 // e) What is the return value assigned to num when pad is called for the last time in this program?  Explain your answer
 // =============> write your answer here
+/* When pad() is called for the last time, num is 1 because there's 1 second left over.
+  The function turns that number into the string "01" by adding a leading zero. That "01" is the value that gets returned and used as the seconds part of the final time display (00:01:01) */
+

eslint.config.mjs

@@ -0,0 +1,7 @@
+import js from "@eslint/js";
+import globals from "globals";
+import { defineConfig } from "eslint/config";
+
+export default defineConfig([
+  { files: ["**/*.{js,mjs,cjs}"], plugins: { js }, extends: ["js/recommended"], languageOptions: { globals: globals.browser } },
+]);