London | Phone_Naing |Module-structuring-and-testing-data/ sprint 3

Sprint-2/debug/0.js

@@ -1,7 +1,8 @@
 // Predict and explain first...
-
+// Predict 320
+//undefined because multiply function has to get return
 function multiply(a, b) {
-  console.log(a * b);
+  return a * b;
 }
 
 console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);

Sprint-2/debug/1.js

@@ -1,8 +1,8 @@
 // Predict and explain first...
-
+// Predict error because a+b is another line(undefined)
 function sum(a, b) {
-  return;
-  a + b;
+  // return;
+  return a + b;
 }
 
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);

Sprint-2/debug/2.js

@@ -1,8 +1,9 @@
 // Predict and explain first...
-
+// Predict error function is calling the number of 103 anc slice to 103 and the result can be 3
+//if i add parameter to getLastDigit it will work
 const num = 103;
 
-function getLastDigit() {
+function getLastDigit(num) {
   return num.toString().slice(-1);
 }
 

Sprint-2/errors/0.js

@@ -1,9 +1,13 @@
 // Predict and explain first...
+//predict i think the error is on the Parameter for capitalise is undefined
+//read is str has already been declared so that mean function parameter can not replace
 
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
-
+//remove the redeclare variable
 function capitalise(str) {
-  let str = `${str[0].toUpperCase()}${str.slice(1)}`;
+  str = `${str[0].toUpperCase()}${str.slice(1)}`;
   return str;
 }
+
+console.log(capitalise("mgphone"));

Sprint-2/errors/1.js

@@ -1,13 +1,14 @@
 // Predict and explain first...
+//error because decimalNumber is redeclare and wrong calling function
 
 // Why will an error occur when this program runs?
 // Try playing computer with the example to work out what is going on
-
+// i did call the convertToPercentage with parameter
 function convertToPercentage(decimalNumber) {
-  const decimalNumber = 0.5;
+  // decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
 
   return percentage;
 }
 
-console.log(decimalNumber);
+console.log(convertToPercentage(0.5));

Sprint-2/errors/2.js

@@ -1,10 +1,9 @@
-
 // Predict and explain first...
+//error because there is function is unfinished, calling is wrong
 
 // this function should square any number but instead we're going to get an error
 
-function square(3) {
-    return num * num;
+function square(num) {
+  return num * num;
 }
-
-
+console.log(square(3));

Sprint-2/extend/format-time.js

@@ -2,11 +2,38 @@
 // Your task is to write tests for as many different groups of input data or edge cases as you can, and fix any bugs you find.
 
 function formatAs12HourClock(time) {
-  const hours = Number(time.slice(0, 2));
+  if (!time || time.length !== 5) {
+    return "Invalid Number";
+  }
+  const splitTime = time.split(":");
+
+  if (splitTime.length !== 2) {
+    return "Invalid format time";
+  }
+
+  const hours = Number(splitTime[0]);
+  const minutes = +splitTime[1];
+  if (
+    isNaN(hours) ||
+    isNaN(minutes) ||
+    minutes < 0 ||
+    minutes > 59 ||
+    hours < 0 ||
+    hours > 23
+  ) {
+    return "Invalid Time value";
+  }
+
   if (hours > 12) {
     return `${hours - 12}:00 pm`;
   }
-  return `${time} am`;
+  if (hours == 0) {
+    return `12:${minutes} am`;
+  }
+  if (hours == 12) {
+    return `12:${minutes} pm`;
+  }
+  return `${hours}:${minutes} am`;
 }
 
 const currentOutput = formatAs12HourClock("08:00");

Sprint-2/implement/bmi.js

@@ -13,3 +13,8 @@
 // Given someone's weight in kg and height in metres
 // Then when we call this function with the weight and height
 // It should return their Body Mass Index to 1 decimal place
+function bmiCalculator(weightInKg, tallInMeter) {
+  const bmi = weightInKg / (tallInMeter * tallInMeter);
+  return bmi.toFixed(1);
+}
+console.log(bmiCalculator(70, 1.73));

Sprint-2/implement/cases.js

@@ -13,3 +13,9 @@
 
 // You will need to come up with an appropriate name for the function
 // Use the string documentation to help you find a solution
+function changeUpperSnakeCase(inputString) {
+  let changeSpaceToUnderScore = inputString.replaceAll(" ", "_");
+  let changeUpperCase = changeSpaceToUnderScore.toUpperCase();
+  return changeUpperCase;
+}
+console.log(changeUpperSnakeCase("lord of the rings"));

Sprint-2/implement/to-pounds.js

@@ -4,3 +4,23 @@
 // 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
+// const penceString = "399p";
+
+function changeToPound(input) {
+  const penceStringWithoutTrailingP = input.substring(0, input.length - 1);
+
+  const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+  const pounds = paddedPenceNumberString.substring(
+    0,
+    paddedPenceNumberString.length - 2
+  );
+
+  const pence = paddedPenceNumberString
+    .substring(paddedPenceNumberString.length - 2)
+    .padEnd(2, "0");
+  return `£${pounds}.${pence}`;
+}
+console.log(changeToPound("399p"));
+test("abcdef", () => {
+  expect(3).toBe("Only Positive Integer");
+});

Sprint-2/implement/vat.js

@@ -8,3 +8,8 @@
 // Given a number,
 // When I call this function with a number
 // it returns the new price with VAT added on
+function addTax(input) {
+  const withVat = input * 1.2;
+  return withVat.toFixed(2);
+}
+console.log(addTax(50));

Sprint-2/interpret/time-format.js

@@ -8,9 +8,7 @@ function formatTimeDisplay(seconds) {
   const remainingMinutes = totalMinutes % 60;
   const totalHours = (totalMinutes - remainingMinutes) / 60;
 
-  return `${pad(totalHours)}:${pad(remainingMinutes)}:${pad(
-    remainingSeconds
-  )}`;
+  return `${pad(totalHours)}:${pad(remainingMinutes)}:${pad(remainingSeconds)}`;
 }
 
 // You will need to play computer with this example - use the Python Visualiser https://pythontutor.com/visualize.html#mode=edit
@@ -19,13 +17,14 @@ function formatTimeDisplay(seconds) {
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
-
+// three 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?
-
+// 0
 // c) What is the return value of pad is called for the first time?
-
+// 00
 // d) What is the value assigned to num when pad is called for the last time in this program?  Explain your answer
-
+// the value will be 1 because it have already been used to left and right of pad and that is only remainingSeconds 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
+// return value of last pad is 01 because remainder of 61 is 1 and add the padStart

Sprint-3/implement/get-angle-type.js

@@ -25,3 +25,18 @@
 // Identify Reflex Angles:
 // When the angle is greater than 180 degrees and less than 360 degrees,
 // Then the function should return "Reflex angle"
+function getAngleType(degrees) {
+  if (degrees < 90 && degrees > 0) {
+    return "Actue Angle";
+  } else if (degrees == 90) {
+    return "Right Angles";
+  } else if (degrees > 90 && degrees < 180) {
+    return "Obtuse Angle";
+  } else if (degrees == 180) {
+    return "Straight Angle";
+  } else if (degrees > 180 && degrees < 360) {
+    return "Reflex Angle";
+  } else return "Your angle should not be less than 0 or greater than 360";
+}
+console.log(getAngleType(0));
+module.exports = getAngleType;

Sprint-3/implement/get-card-value.js

@@ -29,3 +29,44 @@
 // Given a card with an invalid rank (neither a number nor a recognized face card),
 // When the function is called with such a card,
 // Then it should throw an error indicating "Invalid card rank."
+// function getCardValue(checkingCard, emoji) {
+//   //   const splitCard = checkingCard.split("");
+//   //   return splitCard;
+//   const emojiArray = ["❤️", "♠️", "♦️", "♣️"];
+//   const isEmojiValid = emojiArray.includes(emoji);
+//   const valueOfCard =
+//     checkingCard == "A"
+//       ? 11
+//       : checkingCard == "K" || checkingCard == "Q" || checkingCard == "J"
+//       ? 10
+//       : !isNaN(checkingCard) && checkingCard >= 2 && checkingCard <= 10
+//       ? Number(checkingCard)
+//       : false;
+//   return isEmojiValid && valueOfCard ? valueOfCard : "Invalid card rank";
+// }
+
+// console.log(getCardValue("A", "♠️"));
+function getCardValue(card) {
+  const validSuit = ["❤️", "♠️", "♦️", "♣️"];
+
+  const rank = card.slice(0, -2);
+  const suit = card.slice(-2);
+  if (!validSuit.includes(suit)) {
+    throw new Error("Invalid card suit");
+  }
+  const valueOfCard =
+    rank === "A"
+      ? 11
+      : ["K", "Q", "J", "10"].includes(rank)
+      ? 10
+      : !isNaN(rank) && rank >= 2 && rank <= 9
+      ? Number(rank)
+      : false;
+  if (!valueOfCard) {
+    throw new Error("Invalid card rank");
+  }
+  return valueOfCard;
+}
+// console.log(getCardValue("LL"));
+
+module.exports = getCardValue;

Sprint-3/implement/is-proper-fraction.js

@@ -32,3 +32,11 @@
 // target output: false
 // Explanation: The fraction 3/3 is not a proper fraction because the numerator is equal to the denominator. The function should return false.
 // These acceptance criteria cover a range of scenarios to ensure that the isProperFraction function handles both proper and improper fractions correctly and handles potential errors such as a zero denominator.
+const isProperFraction = (numerator, denominator) => {
+  if (denominator === 0) {
+    throw new Error("Denominator cannot be zero");
+  }
+  return Math.abs(numerator) < Math.abs(denominator);
+};
+// console.log(isProperFraction(2, 1));
+module.exports = isProperFraction;

Sprint-3/implement/is-valid-triangle.js

@@ -33,3 +33,9 @@
 // Then it should return true because the input forms a valid triangle.
 
 // This specification outlines the behavior of the isValidTriangle function for different input scenarios, ensuring it properly checks for invalid side lengths and whether they form a valid triangle according to the Triangle Inequality Theorem.
+function isValidTriangle(a, b, c) {
+  return a + b > c && b + c > a && a + c > b;
+}
+console.log(isValidTriangle(0, 2, 1));
+
+module.exports = isValidTriangle;