2.2

Author: Christelle-b

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

@@ -3,15 +3,15 @@
 
 // this function should square any number but instead we're going to get an error
 
-// =============> write your prediction of the error here
+// =============> write your prediction of the error here: There will be an error because we put a value (3) as a function's parameter instead of using variable names. We also don't know where num comes from as we have't defined/ declared that. 
 
 // function square(3) {
 //     return num * num;
 // }
 
-// =============> write the error message here
+// =============> write the error message here: SyntaxError: Unexpected number
 
-// =============> explain this error message here
+// =============> explain this error message here: We get an error message saying that there is an unexpected number on line 8 (Syntax Error).
 
 // Finally, correct the code to fix the problem
 

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

@@ -1,14 +1,14 @@
 // Predict and explain first...
 
-// =============> write your prediction here
+// =============> write your prediction here: There is no return value value for the function multiply. Though it print the value of a * b in the function, this function cannot be called outside of the function (on line 9). So, it will be undefinded. WE need a return
 
 // 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
+// =============> write your explanation here: We need to change console.log on line 6 to return so that we can call in outside of the function.
 
 // Finally, correct the code to fix the problem
 //  =============> write your new code here

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

@@ -1,5 +1,5 @@
 // Predict and explain first...
-//  =============> write your prediction here
+//  =============> write your prediction here: There is a semi column on line 5 after the return which separates it from line 6. We don't know what we are returning.
 
 // function sum(a, b) {
 //   return;
@@ -8,7 +8,7 @@
 
 // console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
-// =============> write your explanation here
+// =============> write your explanation here: SInce we don't know what we are returning, we will get an undefined value for the function. 
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
 function sum(a, b) {

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

@@ -1,24 +1,33 @@
 // Predict and explain first...
 
 // Predict the output of the following code:
-// =============> Write your prediction here
+// =============> Write your prediction here: We are trying to convert the last figure (last index) of a number to a String. We will surely get "2", "5" and "6"
 
-const num = 103;
+// const num = 103;
 
-function getLastDigit() {
-  return num.toString().slice(-1);
-}
+// function getLastDigit() {
+//   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)}`);
+// 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
+// =============> write the output here: After running our code, we saw that it printed "3" all over. Which comes from our initial declaration of num = 103
 // Explain why the output is the way it is
-// =============> write your explanation here
+// =============> write your explanation here: We have declared num as a const which makes it unchangeable through out. We cannot redeclare it. The second thing is that we will need to add num inside of the parameter of the function.
 // Finally, correct the code to fix the problem
 // =============> write your new code here
+let num = 103;
+
+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