i fix all

week-1/exercises/initials.js

@@ -4,5 +4,7 @@ let lastName = "Johnson";
 
 // Declare a variable called initials that stores the first character of each string in upper case to form the user's initials
 // Log the variable in each case
-var initials=  `${firstName.charAt(0).toUpperCase()} ${middleName.charAt(0).toUpperCase()}${lastName.charAt(0).toUpperCase()}`;
-console.log(initials)
+var initials = `${firstName.charAt(0).toUpperCase()} ${middleName
+  .charAt(0)
+  .toUpperCase()}${lastName.charAt(0).toUpperCase()}`;
+console.log(initials);

week-1/interpret/percentage-change.js

@@ -12,9 +12,11 @@ console.log(`The percentage change is ${percentageChange}`);
 // Read the code and then answer the questions below
 
 // a) How many function calls are there in this file? Write down all the lines where a function call is made
-
+//2 Number and replaceAll
 // b) Identify all the lines that are variable reassignment statements
-
+//line 4,5
 // c) Identify all the lines that are variable declarations
-
+//line 1,2,7,8
 // d) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+//Number(carPrice.replaceAll(",",""))  is doing first variable carPrice ..
+//..is  a string, so function Number change this string in to num and function replaceAll change all , in to ..

week-1/interpret/time-format.js

@@ -14,15 +14,17 @@ console.log(result);
 // For the piece of code above, read the code and then answer the following questions
 
 // a) How many variable declarations are there in this program?
-
+//there are 7 variable in this pice of code
 // b) How many function calls are there?
-
+// we don't have function here
 // c) Using documentation on MDN, explain what the expression movieLength % 60 represents
-
+//remainingSeconds = movieLength % 60;=> this expression is ..
+//..help us to get the remaining second after variable movieLength divide by 60
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
-
+// totalMinutes assign to change moveLength in to minutes by subtract from movieLength
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
-
+//result represent the remainingHours, remainingMinutes and the remainingSeconds
+//i suggest replacing the variable name "result" with "remainingHours" to enhance clarity.
 // f) Think about whether this program will work for all values of movieLength.
 //    Think of what values may cause problems for the code.
 //    Decide the result should be for those values, then test it out.

week-1/interpret/to-pounds.js

@@ -1,16 +1,19 @@
 const penceString = "399p";
-
+//  "penceSting" variable declare  with "399p" value
 const penceStringWithoutTrailingP = penceString.substring(
   0,
   penceString.length - 1
 );
-
+// "penceStringWithoutTrailingP" is create new value by taking substring from "penceString"
+// function subString remove the last index by subtract -1 from  "penceString"length
 const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+//paddedPenceNumberString is create a value by add 0 in "penceStringWithoutTrailingP"
 const pounds = paddedPenceNumberString.substring(
   0,
   paddedPenceNumberString.length - 2
 );
-
+//"pounds" is create a value by taking subString from "paddedPenceNumberString"
+//function subString remove the last index by subtract -2 from  "paddedPenceNumberString"length
 const pence = paddedPenceNumberString
   .substring(paddedPenceNumberString.length - 2)
   .padEnd(2, "0");

week-2/errors/0.js

@@ -4,6 +4,8 @@
 // interpret the error message and figure out why it's happening, if your prediction was wrong
 
 function capitalise(str) {
-  let str = `${str[0].toUpperCase()}${str.slice(1)}`;
+  var str = `${str[0].toUpperCase()}${str.slice(1)}`;
   return str;
 }
+var str = "uygugbu";
+console.log(capitalise(str));

week-2/errors/2.js

@@ -1,10 +1,8 @@
-
 // Predict and explain first...
 // this function should square any number but instead we're going to get an error
 // what is happening? How can we fix it?
-
-function square(3) {
-    return num * num;
+// to obtain the first square number we need multiply a number by it self
+function square(num) {
+  return num * num;
 }
-
-
+console.log(square(2));

week-2/implement/bmi.js

@@ -13,3 +13,15 @@
 // Given someone's weight in kg and height in metres
 // When we call this function with the weight and height
 // Then it returns their Body Mass Index to 1 decimal place
+function bmiCalculation(weight, height) {
+  if (typeof weight === "number" && typeof height === "number") {
+    const bmi = weight / (height * height);
+
+    return `${bmi.toFixed(1)}`;
+  } else {
+    return " please use the right unit";
+  }
+}
+var weight = 60;
+var height = 1.64;
+console.log(bmiCalculation(weight, height));

week-2/implement/cases.js

@@ -15,3 +15,11 @@
 
 // Come up with a clear, simple name for the function
 // Use the string documentation to help you plan your solution
+let string = "";
+function upperSnakeCase(string) {
+  const wordSplit = string.split(" ");
+  const wordToCapital = wordSplit.map((word) => word.toUpperCase());
+  const wordJoin = wordToCapital.join("_");
+  return wordJoin;
+}
+console.log(upperSnakeCase("nohe tekel mariyam"));

week-2/implement/to-pounds.js

@@ -3,3 +3,21 @@
 // Take this code and turn it into a reusable block of code.
 // Declare a function called toPounds with an appropriately named parameter.
 // Call this function a number of times to check it works for different inputs
+
+function toPounds(penceString) {
+  const penceStringWithoutTrailingP = penceString.substring(
+    0,
+    penceString.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}`;
+}
+var penceString = "299p";
+console.log(toPounds(penceString));

week-2/implement/vat.js

@@ -1,10 +1,21 @@
 // When selling goods, most are subject to the 20% standard rate of VAT.
 // You must add 20% to the price you charge for the goods.
 // You can do this by multiplying the price you charge by 1.2.
-// For example, if your business sells sports equipment for £50, you multiply £50 by 1.2 for a total VAT inclusive price of £60.
+// For example, if your business sells sports equipment for £50, you multiply £50 by 1.2 for ..
+//..a total VAT inclusive price of £60.
 
 // Implement a function that calculates the new price with VAT (Value Added Tax) added on.
 
 // Given a number,
 // When I call this function with a number
 // Then it returns the new price with VAT added on
+function productCostWithVat(price) {
+  if (typeof price === "number") {
+    const vatPrice = price * 1.2;
+    return `£${vatPrice.toFixed(2)}`;
+  } else {
+    return "don't waste my time";
+  }
+}
+var price = 399;
+console.log(productCostWithVat(price));

week-2/interpret/time-format.js

@@ -26,18 +26,22 @@ console.log(formatTimeDisplay(143));
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
-
+//3 time
 // Call formatTimeDisplay with an input of 143, now answer the following:
 
 // b) What value is assigned to the parameter num when pad is called for the first time?
-
+   //remainingHours or 00
 // c) What is the return value of pad when it is called for the first time?
-
+      //00
 // d) What is the value assigned to the parameter num when pad
 // is called for the last time in this program?  Explain your answer
-
+      //if second is less than 10 it would add 0 but now it is more than 10  so it return 23.
 // e) What is the return value when pad is called
 // for the last time in this program?  Explain your answer
-
+  // pad return 23 b/c 23 is greater than 10
 // f) Research an alternative way of padding the numbers in this code.
 // Look up the string functions on mdn
+  / //funtion pad(num)
+    //{
+     // return num.toString().padstart(2,"0");
+    //}

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

@@ -21,3 +21,18 @@
 // 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(Angles) {
+  if (Angles == 90) {
+    return "Right angle";
+  } else if (Angles < 90) {
+    return "Acute angle";
+  } else if (Angles == 180) {
+    return "Straight angle";
+  } else if (Angles > 180 && AngleS < 360) {
+    return "reflex angle";
+  } else {
+    return "it's not angle";
+  }
+}
+var AngleS = 350;
+console.log(getAngleType(AngleS));

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

@@ -9,7 +9,7 @@
 // Given a card string in the format "A♠" (representing a card in blackjack),
 // When the function getCardValue is called with this card string as input,
 // Then it should return the numerical card value
-
+function getCardValue() {}
 // Handle Number Cards (2-10):
 // Given a card with a rank between "2" and "10",
 // When the function is called with such a card,

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

@@ -11,7 +11,19 @@
 // Input: numerator = 2, denominator = 3
 // target output: true
 // Explanation: The fraction 2/3 is a proper fraction, where the numerator is less than the denominator. The function should return true.
-
+function isProperFraction(numerator, denominator) {
+  if (numerator >= denominator && denominator != 0) {
+    return "false";
+  } else if (numerator < denominator) {
+    return "True";
+  } else {
+    return "error";
+  }
+}
+console.log(isProperFraction(5, 2));
+console.log(isProperFraction(3, 0));
+console.log(isProperFraction(-4, 7));
+console.log(isProperFraction(3, 3));
 // Improper Fraction check:
 // Input: numerator = 5, denominator = 2
 // target output: false

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

@@ -12,19 +12,36 @@
 // It's also true that b + c > a
 // It's also true that a + c > b
 
-// In our function isValidTriangle, we need to return false for any triangle where the sum of any two sides is less than or equal to the length of the third side.
-// and we need to return true for any triangle where the sum of any two sides is greater than the length of the third side.
+// In our function isValidTriangle, we need to return false for any triangle where the sum of any two
+//..sides is less than or equal to the length of the third side.
+// and we need to return true for any triangle where the sum of any two sides is greater than the length
+//..of the third side.
 
 // Acceptance criteria:
 
 // Given the lengths of three sides of a triangle (a, b, c),
 // When the function isValidTriangle is called with these side lengths as input,
 // Then it should:
-
+function isValidTriangle(side1, side2, side3) {
+  if (
+    side1 + side2 <= side3 ||
+    side1 + side3 <= side2 ||
+    (side2 + side3 <= side1 && side1 <= 0) ||
+    side2 <= 0 ||
+    side3 <= 0
+  ) {
+    return "false";
+  } else {
+    return "turn";
+  }
+}
 // scenario: invalid triangle
 // Given the side lengths a, b, and c,
-// When the sum of any two side lengths is less than or equal to the length of the third side (i.e., a + b <= c, a + c <= b, b + c <= a),
-// Then it should return false because these conditions violate the Triangle Inequality, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
+// When the sum of any two side lengths is less than or equal to the length of the third side
+//.. (i.e., a + b <= c, a + c <= b, b + c <= a),
+// Then it should return false because these conditions violate the Triangle Inequality,
+//..which states that the sum of the lengths of any two sides of a triangle must be greater than the
+//..length of the third side.
 
 // scenario: invalid triangle
 // Check for Valid Input:

week-4/implement/creditCardValidator.js

@@ -0,0 +1,14 @@
+//n this project you'll write a script that validates whether or not a credit card number is valid.
+
+//Here are the rules for a valid number:
+
+//- Number must be 16 digits, all of them must be numbers.
+//- You must have at least two different digits represented (all of the digits cannot be the same).
+//- The final digit must be even.
+//- The sum of all the digits must be greater than 16.
+function creditCardValidator(cardNumber) {
+  if (typeof cardNumber !== "number" && cardNumber.length !== 16);
+  {
+    return "not card";
+  }
+}