Brussels | ITP25 | Reyhan Yediyildiz | Module-Structuring-and-Testing-Data/Sprint-2

Sprint-2/1-key-errors/0.js

@@ -1,13 +1,10 @@
-// Predict and explain first...
-//  =============> write your prediction here
-
-// call the function capitalise with a string input
-// interpret the error message and figure out why an error is occurring
 
 function capitalise(str) {
-  let str = `${str[0].toUpperCase()}${str.slice(1)}`;
+  str = `${str[0].toUpperCase()}${str.slice(1)}`;
   return str;
 }
+//console.log("Ok");
+
+module.exports =capitalise ;
+
 
-// =============> write your explanation here
-// =============> write your new code here

Sprint-2/1-key-errors/1.js

@@ -1,20 +1,11 @@
-// Predict and explain first...
-
-// Why will an error occur when this program runs?
-// =============> write your prediction here
-
-// Try playing computer with the example to work out what is going on
 
 function convertToPercentage(decimalNumber) {
-  const decimalNumber = 0.5;
+  //const decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
 
   return percentage;
 }
 
-console.log(decimalNumber);
-
-// =============> write your explanation here
+module.exports = convertToPercentage;
+//console.log(convertToPercentage(0.5));
 
-// Finally, correct the code to fix the problem
-// =============> write your new code here

Sprint-2/1-key-errors/2.js

@@ -1,20 +1,8 @@
-
-// Predict and explain first BEFORE you run any code...
-
-// this function should square any number but instead we're going to get an error
-
-// =============> write your prediction of the error here
-
-function square(3) {
+function square(num) {
     return num * num;
 }
+module.exports = square;
+//console.log(square(3));
 
-// =============> write the error message here
-
-// =============> explain this error message here
-
-// Finally, correct the code to fix the problem
-
-// =============> write your new code here
 
 

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

@@ -1,14 +1,9 @@
-// Predict and explain first...
-
-// =============> write your prediction here
 
 function multiply(a, b) {
-  console.log(a * b);
+  return(a * b);
 }
 
-console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
+module.exports = multiply;
+//console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
-// =============> write your explanation here
 
-// Finally, correct the code to fix the problem
-//  =============> write your new code here

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

@@ -1,13 +1,7 @@
-// Predict and explain first...
-//  =============> write your prediction here
-
 function sum(a, b) {
-  return;
-  a + b;
+  return a + b;
 }
 
-console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
+module.exports = sum;
+//console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
-// =============> write your explanation here
-// Finally, correct the code to fix the problem
-//  =============> write your new code here

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

@@ -1,24 +1,10 @@
-// Predict and explain first...
-
-// Predict the output of the following code:
-// =============> Write your prediction here
-
-const num = 103;
-
-function getLastDigit() {
+let num;
+function getLastDigit(num) {
   return num.toString().slice(-1);
 }
 
-console.log(`The last digit of 42 is ${getLastDigit(42)}`);
-console.log(`The last digit of 105 is ${getLastDigit(105)}`);
-console.log(`The last digit of 806 is ${getLastDigit(806)}`);
-
-// Now run the code and compare the output to your prediction
-// =============> write the output here
-// Explain why the output is the way it is
-// =============> write your explanation here
-// Finally, correct the code to fix the problem
-// =============> write your new code here
+module.exports = getLastDigit;
+//console.log(`The last digit of 42 is ${getLastDigit(42)}`);
+//console.log(`The last digit of 105 is ${getLastDigit(105)}`);
+//console.log(`The last digit of 806 is ${getLastDigit(806)}`);
 
-// This program should tell the user the last digit of each number.
-// Explain why getLastDigit is not working properly - correct the problem

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

@@ -16,4 +16,8 @@
 
 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(calculateBMI(70,1.70));

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

@@ -14,3 +14,7 @@
 // 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
+function upperAndSnakeCase(string){
+ return string.replaceAll(' ', '_').toUpperCase();
+ }
+ console.log(upperAndSnakeCase("lord of the rings"));

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

@@ -4,3 +4,19 @@
 // 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
+
+function toPounds(penceString){
+    //const penceString = "399p";
+
+const penceStringWithoutTrailingP = penceString.substring(0,penceString.length - 1);
+
+const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length - 2 );
+
+const pence = paddedPenceNumberString
+  .substring(paddedPenceNumberString.length - 2)
+  .padEnd(2, "0");
+return `£${pounds}.${pence}`;
+}
+
+console.log(toPounds("11150p"));

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

@@ -18,17 +18,18 @@ function formatTimeDisplay(seconds) {
 
 // a) When formatTimeDisplay is called how many times will pad be called?
 // =============> write your answer here
-
+3
 // Call formatTimeDisplay with an input of 61, now answer the following:
-
+00:01:01
 // b) What is the value assigned to num when pad is called for the first time?
 // =============> write your answer here
-
+0
 // c) What is the return value of pad is called for the first time?
 // =============> write your answer here
-
+00
 // 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
-
+1
 // 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
+01

Sprint-2/5-stretch-extend/format-time.js

@@ -6,6 +6,8 @@ function formatAs12HourClock(time) {
   const hours = Number(time.slice(0, 2));
   if (hours > 12) {
     return `${hours - 12}:00 pm`;
+  }else if (hours === 12){
+    return `${hours}:00 pm`;
   }
   return `${time} am`;
 }

Sprint-2/test.js

@@ -0,0 +1,45 @@
+const capitalise = require('./1-key-errors/0');
+const convertToPercentage = require('./1-key-errors/1');
+const square = require('./1-key-errors/2');
+const multiply = require('./2-mandatory-debug/0');
+const sum = require('./2-mandatory-debug/1');
+const getLastDigit = require('./2-mandatory-debug/2');
+
+describe('capitalise', () => {
+  test('capitalises first letter', () => {
+    expect(capitalise('ok')).toBe('Ok');
+  });
+});
+
+describe(`convertToPercentage`, () => {
+    test(`convert to percentage`, () =>{
+        expect(convertToPercentage(`0.5`)).toBe(`50%`);
+    })
+
+})
+
+describe(`square`, () => {
+    test(`square of 3 should be 9`, () =>{
+        expect(square(3)).toBe(9);
+    })
+})
+
+
+describe('multiply', () => {
+    test('the product of two numbers', () => {
+        expect(multiply(10,32)).toBe(320);
+    });
+});   
+
+describe(`sum`, ()=> {
+    test(`The sum of 10 and 32`, () => {
+        expect(sum(10,32)).toBe(42);
+    });
+});
+
+describe(`Last digit`, () =>{
+    test(`get last digit`, () =>{
+        expect(getLastDigit(`42`)).toBe(`2`);
+    });     
+});
+