Finished the last part of sprint 2 course work and ready for PR

Author: Jacknguyen4438

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

@@ -16,4 +16,7 @@
 
 function calculateBMI(weight, height) {
     // return the BMI of someone based off their weight and height
-}
+    return Number((weight / (height * height)).toFixed(1));
+}
+
+console.log(calculateBMI(60,1.56));

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

@@ -14,3 +14,8 @@
 // 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 upperCaseSentence (word){
+return word.toUpperCase().replace(" ","_");
+};
+
+console.log(upperCaseSentence("wake up"))

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

@@ -4,3 +4,10 @@
 // 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 (pence){
+   let pound = pence * 0.01;
+   return `£ ${pound.toFixed(2)}`;
+};
+
+console.log(toPounds("400"));

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

@@ -10,25 +10,39 @@ 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
 
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
 // =============> write your answer here
+//when the function formatTimeDisplay when is called, the pad function will call 3 times.
 
 // 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
+// The assign value to num when it first call is 0.
 
 // c) What is the return value of pad is called for the first time?
 // =============> write your answer here
+// The return value of pad for the first time is 0.
 
 // 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 assign value to num when the function pad when it 
+last called will be 1. Because when the pad function called for the third time, it will
+receive the value from the variable remainingSeconds(seconds % 60 = 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 assign return value to num when the function pad when it last called will be 01,
+because the when the value remainingSeconds pass into the pad function. It will 
+turn into string that will be add and combine "0" into the string "1" to the left because the padStart method check the total 
+length of the string "1"  and it is less then 2.
+*/