restoring sprint 2

Author: Abrsh100

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

@@ -1,27 +1,13 @@
 // Predict and explain first...
 //  =============> write your prediction here
- 
-// The code will capitalize the first word of the str which gives "Str"
 
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
 
-// The error occurs in line 13 and it says "SyntaxError: Identifier 'str' has already been declared"
-// The error is informing us that the string str has already been declared in line 12 so we can not declare it again.
-
-//function capitalise(str) {
-//  let str = `${str[0].toUpperCase()}${str.slice(1)}`;
-//  return str;
-//}
-
-// =============> write your explanation here
-
-// The code is written to capitalize the first letter of str which is expected to give the result Str.
-
-// =============> write your new code here
-
 function capitalise(str) {
-  str = `${str[0].toUpperCase()}${str.slice(1)}`;
+  let str = `${str[0].toUpperCase()}${str.slice(1)}`;
   return str;
 }
-console.log(capitalise("str"))
+
+// =============> write your explanation here
+// =============> write your new code here

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

@@ -2,29 +2,19 @@
 
 // Why will an error occur when this program runs?
 // =============> write your prediction here
-// This code is tend to be a code to convert decimal number in to %. I predict there will be an error because the call for the function has a bug.
 
 // Try playing computer with the example to work out what is going on
 
-/*function convertToPercentage(decimalNumber) {
+function convertToPercentage(decimalNumber) {
   const decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
 
   return percentage;
-}/
+}
 
-console.log(decimalNumber);*/
+console.log(decimalNumber);
 
 // =============> write your explanation here
-// A syntaxError has been observed because the decimalNumber is already declared.
-// if we delete line 10 anther error happen this time about calling the function in which decimalNumber is not defined in the global scope.
 
 // Finally, correct the code to fix the problem
 // =============> write your new code here
-function convertToPercentage(decimalNumber) {
-  const percentage = `${decimalNumber * 100}%`;
-
-  return percentage;
-}
-
-console.log(convertToPercentage("0.5"));

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

@@ -4,26 +4,17 @@
 // this function should square any number but instead we're going to get an error
 
 // =============> write your prediction of the error here
-/* There is a problem in the function parameter. we can not use number in parameter.
-even though line 12 by it self has no coding problem but the num is not declared before.*/
 
-/*
 function square(3) {
     return num * num;
 }
-*/
 
 // =============> write the error message here
-/* unexpected number
+
 // =============> explain this error message here
-we can not use number in a parameter so 3 is not used as identifier  */
 
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
-function square(num) {
-    return num * num;
-}
-console.log(square("3"))
 
 

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

@@ -1,21 +1,14 @@
 // Predict and explain first...
 
 // =============> write your prediction here
-/*the function doesn't return any thing so there will be an error. */
 
-/*function multiply(a, b) {
+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
-/* As predicted the function does not return any thing. But the first call gives 320. and the second undefine. */
 
 // 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

@@ -1,20 +1,13 @@
 // Predict and explain first...
 //  =============> write your prediction here
-/* The code will give us the sum of 10 and 32 which will be " The sum of 10 and 32 is 42" */
 
-/*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 call of the function gives undefine result. the reason for this is the semicolon after return which shouldn't be placed there.
 // Finally, correct the code to fix the problem
-//  =============> write your new code here */
-function sum(a, b) {
-  return a + b;
-}
-
-console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
+//  =============> write your new code here

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

@@ -2,12 +2,8 @@
 
 // Predict the output of the following code:
 // =============> Write your prediction here
-/* I predict that the three call are giving 
-The last digit of 42 is 2
-The last digit of 105 is 5
-The last digit of 806 is 6    */
 
-/*const num = 103;
+const num = 103;
 
 function getLastDigit() {
   return num.toString().slice(-1);
@@ -16,25 +12,13 @@ function 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)}`);
- */
+
 // Now run the code and compare the output to your prediction
 // =============> write the output here
-/* The last digit of 42 is 3
-   The last digit of 105 is 3
-   The last digit of 806 is 3  */
 // Explain why the output is the way it is
 // =============> write your explanation here
-/* because the num is determined at fires and 103 is given to the num. as a result we see the same result.*/
 // Finally, correct the code to fix the problem
 // =============> write your new code here
 
-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)}`);
-
 // 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

@@ -14,9 +14,6 @@
 // Then when we call this function with the weight and height
 // It should return their Body Mass Index to 1 decimal place
 
-function calculateBMI(weight, height) { 
-    const bmi= weight/ (height*height)
-    return bmi.toFixed(1);
+function calculateBMI(weight, height) {
     // return the BMI of someone based off their weight and height
-}
-console.log(calculateBMI(86,1.70));
+}

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

@@ -14,9 +14,3 @@
 // 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 toUpperCase(text) {
-    return text.toUpperCase();
-}
-
-console.log(toUpperCase("hello there"));
-console.log(toUpperCase("lord of the ring"));

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

@@ -4,14 +4,3 @@
 // 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(pennies) {
-    const pounds = pennies / 100;
-    return pounds.toFixed(2); 
-}
-
-// calling the function to make sure it works
-console.log(toPounds(32391));   
-console.log(toPounds(3239));    
-console.log(toPounds(323)); 
-console.log(toPounds(32));
-console.log(toPounds(3));

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

@@ -10,7 +10,6 @@ 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
@@ -19,22 +18,17 @@ console.log(formatTimeDisplay(61));
 
 // a) When formatTimeDisplay is called how many times will pad be called?
 // =============> write your answer here
-/* pad will be called 3 times. one for totalHours, one for remainingMinutes and one for remainingSeconds.*/
 
 // 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
-/* when I run the code the result is 00:01:01 there for the value assigned to num is "0".
 
 // c) What is the return value of pad is called for the first time?
 // =============> write your answer here
-/* the return value is "00". this comes 0 changed to string and then padstart(2,0) changes it to "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
-/* The value assigned to num when the pad is called for the last time is "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
-/* The return value is 1. The code 1.toString() changes the num 1 to string "1" then the code .padStart(2, "0"); changes "1" to "01" */