Fix: Remove accidentally committed Sprint 2 files

Author: Samual-Hu

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

@@ -1,18 +1,13 @@
 // Predict and explain first...
 //  =============> write your prediction here
-// It will crash with a SyntaxError. We can't use 'let' to declare 'str' because 'str' is already taken by the function parameter.
+
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
-/* I commented this out so it doesn't crash:
+
 function capitalise(str) {
   let str = `${str[0].toUpperCase()}${str.slice(1)}`;
   return str;
 }
-*/
+
 // =============> write your explanation here
-//The error confirms "str has already been declared". Function parameters act as local variables, creating a naming conflict with `let str`.
 // =============> write your new code here
-function capitalise(str) {
-  return `${str[0].toUpperCase()}${str.slice(1)}`;
-}
-console.log(capitalise("hello"));

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

@@ -2,9 +2,9 @@
 
 // Why will an error occur when this program runs?
 // =============> write your prediction here
-// It will crash for two reasons. 1. Trying to log a local variable 'decimalNumber' outside its function. 2. Trying to re-declare the parameter 'decimalNumber' using 'const' inside the function.
+
 // Try playing computer with the example to work out what is going on
-/* Commented out broken code:
+
 function convertToPercentage(decimalNumber) {
   const decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
@@ -13,12 +13,8 @@ function convertToPercentage(decimalNumber) {
 }
 
 console.log(decimalNumber);
-*/
+
 // =============> write your explanation here
-// 'decimalNumber' is scoped to the function, so console.log outside can't see it (ReferenceError). Inside, re-declaring the parameter with 'const' causes a SyntaxError. Also, the function was never actually called.
+
 // Finally, correct the code to fix the problem
 // =============> write your new code here
-function convertToPercentage(decimalNumber) {
-  return `${decimalNumber * 100}%`;
-}
-console.log(convertToPercentage(0.5));

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

@@ -4,22 +4,17 @@
 // this function should square any number but instead we're going to get an error
 
 // =============> write your prediction of the error here
-// Syntax error. We put a hardcoded number '3' where a parameter name (like 'num') should be.
-/* Commented out the broken code so it doesn't crash:
+
 function square(3) {
     return num * num;
 }
-*/
+
 // =============> write the error message here
-// SyntaxError: Unexpected number
+
 // =============> explain this error message here
-// Function definitions require variable names as parameters to act as placeholders, not literal values.
+
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
-function square(num) {
-  return num * num;
-}
-console.log(square(3)); 
-console.log(square(4));
+
 

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

@@ -1,19 +1,14 @@
 // Predict and explain first...
 
 // =============> write your prediction here
-//It will print "320", followed by "The result... is undefined". The function lacks a return value.
-/* Commented out the broken code:
+
 function multiply(a, b) {
   console.log(a * b);
 }
 
 console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
-*/
+
 // =============> write your explanation here
-// `console.log` just prints to the screen. Without a `return` statement, the function evaluates to `undefined`, which gets injected into the template literal.
+
 // 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

@@ -1,19 +1,13 @@
 // Predict and explain first...
 //  =============> write your prediction here
-// It will print "undefined". The 'return;' statement stops the function immediately before it even looks at 'a + b'.
-/* Commented out the broken code:
+
 function sum(a, b) {
   return;
   a + b;
 }
 
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
-*/
+
 // =============> write your explanation here
-// The 'return' keyword instantly exits the function. Since nothing is attached to it, it returns 'undefined'. The 'a + b;' line is dead code that never gets executed.
 // 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)}`);

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

@@ -2,8 +2,7 @@
 
 // Predict the output of the following code:
 // =============> Write your prediction here
-// It will always print "3" for every log. The function ignores the numbers we pass in and blindly uses the global 'num' (103).
-/* Commented out the broken code:
+
 const num = 103;
 
 function getLastDigit() {
@@ -13,22 +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
-// The function lacks a parameter in its definition. Therefore, it ignores the arguments (42, 105, 806) and always falls back to the globally defined 'num' which is 103.
 // Finally, correct the code to fix the problem
 // =============> write your new code here
-function getLastDigit(number) {
-  return number.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