completed mandatory debug

Author: Dipa-Sarker

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

@@ -1,14 +1,24 @@
 // Predict and explain first...
 
 // =============> write your prediction here
+// I think there is nor function call has been made. a and b only inserted as function parameters.
 
-function multiply(a, b) {
-  console.log(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
+// The result of multiplying 10 and 32 is undefined. This is the error. Now I think the reason for showing the result undefined is that 
+// console.log(a * b); only prints 320 but the function does not return anything. 
 
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+// The correct code:
+
+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 +1,23 @@
 // Predict and explain first...
 //  =============> write your prediction here
+// I think only return; doesnot mean anything means it won't return anything. Besides, the expression a + b; won't also work
+// cause after calculating a + b it won't return anything and the output will show undefined value.
 
-function sum(a, b) {
-  return;
-  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
+// My prediction exactly matches with the output after I run code.
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+// The correct code:
+
+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

@@ -2,23 +2,42 @@
 
 // Predict the output of the following code:
 // =============> Write your prediction here
+// i think the function won't return anything for numbers 42, 105 and 806 because the variable num contains value 103 and the return will only
+// work with 103 inside the function. There is no relation between const num = 103; and 42, 105 and 806. 
 
-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
+// The output: 
+// 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 output is quite similar to my prediction. When the function tried to find out function calls for getLastDigit(42), getLastDigit(105)
+// and getLastDigit(806) it doesn't find any of these because those didn't match with the variable declaration. As the function wokred only
+// with 103, it returned value for 103 and printed 3 as last digit for all three values. 
 // Finally, correct the code to fix the problem
 // =============> write your new code here
+// The correct code:
+
+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