From ac4dc6c655583f6f14d91632c92f314a91291645 Mon Sep 17 00:00:00 2001
From: vboxuser <vboxuser@Ubuntu.myguest.virtualbox.org>
Date: Sat, 11 Nov 2023 15:12:50 +0000
Subject: [PATCH 1/2] errors, exercises and explore done

---
 week-1/errors/1.js           |  3 ++-
 week-1/errors/3.js           |  5 ++++-
 week-1/errors/4.js           |  5 +++--
 week-1/exercises/count.js    |  2 ++
 week-1/exercises/decimal.js  | 10 +++++++---
 week-1/exercises/initials.js |  2 ++
 week-1/exercises/paths.js    |  4 ++++
 week-1/exercises/random.js   |  4 ++++
 week-1/explore/chrome.md     |  3 +++
 9 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/week-1/errors/1.js b/week-1/errors/1.js
index 7a43cbea..2dc1d4d6 100644
--- a/week-1/errors/1.js
+++ b/week-1/errors/1.js
@@ -1,4 +1,5 @@
 // trying to create an age variable and then reassign the value by 1
 
-const age = 33;
+var age = 33;
 age = age + 1;
+console.log(age);
\ No newline at end of file
diff --git a/week-1/errors/3.js b/week-1/errors/3.js
index ffa72ca4..5516239b 100644
--- a/week-1/errors/3.js
+++ b/week-1/errors/3.js
@@ -1,7 +1,10 @@
 const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.slice(-4);
+let stringNumber = cardNumber.toString();
+const last4Digits =stringNumber.slice(-4);
 
 // The last4Digits variable should store the last 4 digits of cardNumber
 // However, the code isn't working
 // Make and explain a prediction about why the code won't work
+      //
 // Then try updating the expression last4Digits is assigned to, in order to get the correct value
+console.log(last4Digits);
\ No newline at end of file
diff --git a/week-1/errors/4.js b/week-1/errors/4.js
index 21dad8c5..d6d3ccb1 100644
--- a/week-1/errors/4.js
+++ b/week-1/errors/4.js
@@ -1,2 +1,3 @@
-const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
\ No newline at end of file
+const HourClockTime12 = "20:53";
+const hourClockTime24 = "08:53";
+   //variable can not start with numer symbol
\ No newline at end of file
diff --git a/week-1/exercises/count.js b/week-1/exercises/count.js
index 117bcb2b..b9ff8770 100644
--- a/week-1/exercises/count.js
+++ b/week-1/exercises/count.js
@@ -4,3 +4,5 @@ count = count + 1;
 
 // Line 1 is a variable declaration, creating the count variable with an initial value of 0
 // Describe what line 3 is doing, in particular focus on what = is doing
+      //in line 3 the variable count is increase by one.
+       console.log(count)
diff --git a/week-1/exercises/decimal.js b/week-1/exercises/decimal.js
index bd4a4740..e3b54f4f 100644
--- a/week-1/exercises/decimal.js
+++ b/week-1/exercises/decimal.js
@@ -1,10 +1,14 @@
 
 const num = 56.5467;
 
-// You should look up Math functions for this exercise https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math
-
+// You should look up Math functions for this exercise  
 // Create a variable called wholeNumberPart and assign to it an expression that evaluates to 56 ( the whole number part of num )
+    var wholeNumberpart= Math.floor(num);
 // Create a variable called decimalPart and assign to it an expression that evaluates to 0.5467 ( the decimal part of num )
+      var decimalpart= num-Math.floor(num);
 // Create a variable called roundedNum and assign to it an expression that evaluates to 57 ( num rounded to the nearest whole number )
-
+   var rounded= Math.round(num);
 // Log your variables to the console to check your answers
+console.log(wholeNumberpart);
+console.log(decimalpart);
+    console.log(rounded);
\ No newline at end of file
diff --git a/week-1/exercises/initials.js b/week-1/exercises/initials.js
index 50b62103..84b05da0 100644
--- a/week-1/exercises/initials.js
+++ b/week-1/exercises/initials.js
@@ -4,3 +4,5 @@ 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)
\ No newline at end of file
diff --git a/week-1/exercises/paths.js b/week-1/exercises/paths.js
index c91cd2ab..4af6dc9b 100644
--- a/week-1/exercises/paths.js
+++ b/week-1/exercises/paths.js
@@ -15,4 +15,8 @@ const base = filePath.slice(lastSlashIndex + 1);
 console.log(`The base part of ${filePath} is ${base}`);
 
 // Create a variable to store the dir part of the filePath variable
+const dirpath= filePath.slice(0,-8);
+console.log(dirpath);
+console.log(base);
 // Create a variable to store the ext part of the variable
+
diff --git a/week-1/exercises/random.js b/week-1/exercises/random.js
index 79a4a4d5..11762e26 100644
--- a/week-1/exercises/random.js
+++ b/week-1/exercises/random.js
@@ -4,6 +4,10 @@ const maximum = 100;
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 
 // In this exercise, you will need to work out what num represents?
+      
 // Try breaking down the expression and using documentation to explain what it means
+    // the num variable first find random number 1 up to 100 then round the number
+    // and multiplay by maximum -minimum and add one finally add minimum
 // It will help to think about the order in which expressions are evaluated
 // Try logging the value of num several times to build an idea of what the program is doing
+  console.log(num);
\ No newline at end of file
diff --git a/week-1/explore/chrome.md b/week-1/explore/chrome.md
index e7dd5fea..5fec4553 100644
--- a/week-1/explore/chrome.md
+++ b/week-1/explore/chrome.md
@@ -11,8 +11,11 @@ In the Chrome console,
 invoke the function `alert` with an input string of `"Hello world!"`;
 
 What effect does calling the `alert` function have?
+alert is small box at the top that display a text
 
 Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`.
 
 What effect does calling the `prompt` function have?
+prompt is a dialog box that the propmts user for input
 What is the return value of `prompt`?
+ok or cancel

From 6e6ede5679bd280e16a5afb6a03a6607705f2a04 Mon Sep 17 00:00:00 2001
From: nohetekelmariyam <nohemariam@gmail.com>
Date: Sat, 2 Dec 2023 14:18:21 +0000
Subject: [PATCH 2/2] i fix all

---
 week-1/exercises/initials.js            |  6 ++++--
 week-1/interpret/percentage-change.js   |  8 +++++---
 week-1/interpret/time-format.js         | 12 ++++++-----
 week-1/interpret/to-pounds.js           |  9 ++++++---
 week-2/errors/0.js                      |  4 +++-
 week-2/errors/2.js                      | 10 ++++-----
 week-2/implement/bmi.js                 | 12 +++++++++++
 week-2/implement/cases.js               |  8 ++++++++
 week-2/implement/to-pounds.js           | 18 +++++++++++++++++
 week-2/implement/vat.js                 | 13 +++++++++++-
 week-2/interpret/time-format.js         | 14 ++++++++-----
 week-3/implement/get-angle-type.js      | 15 ++++++++++++++
 week-3/implement/get-card-value.js      |  2 +-
 week-3/implement/is-proper-fraction.js  | 14 ++++++++++++-
 week-3/implement/is-valid-triangle.js   | 27 ++++++++++++++++++++-----
 week-4/implement/creditCardValidator.js | 14 +++++++++++++
 16 files changed, 153 insertions(+), 33 deletions(-)
 create mode 100644 week-4/implement/creditCardValidator.js

diff --git a/week-1/exercises/initials.js b/week-1/exercises/initials.js
index 84b05da0..8a76504c 100644
--- a/week-1/exercises/initials.js
+++ b/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)
\ No newline at end of file
+var initials = `${firstName.charAt(0).toUpperCase()} ${middleName
+  .charAt(0)
+  .toUpperCase()}${lastName.charAt(0).toUpperCase()}`;
+console.log(initials);
diff --git a/week-1/interpret/percentage-change.js b/week-1/interpret/percentage-change.js
index 49b0ac15..515b497f 100644
--- a/week-1/interpret/percentage-change.js
+++ b/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 ..
diff --git a/week-1/interpret/time-format.js b/week-1/interpret/time-format.js
index 7961fe0d..66e69cef 100644
--- a/week-1/interpret/time-format.js
+++ b/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.
diff --git a/week-1/interpret/to-pounds.js b/week-1/interpret/to-pounds.js
index 196be3b2..5116e529 100644
--- a/week-1/interpret/to-pounds.js
+++ b/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");
diff --git a/week-2/errors/0.js b/week-2/errors/0.js
index 58b1349d..3f6194d2 100644
--- a/week-2/errors/0.js
+++ b/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));
diff --git a/week-2/errors/2.js b/week-2/errors/2.js
index b0454133..d7826706 100644
--- a/week-2/errors/2.js
+++ b/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));
diff --git a/week-2/implement/bmi.js b/week-2/implement/bmi.js
index 172c7c9a..19b46dfb 100644
--- a/week-2/implement/bmi.js
+++ b/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));
diff --git a/week-2/implement/cases.js b/week-2/implement/cases.js
index 56b0d8d0..8b9faf13 100644
--- a/week-2/implement/cases.js
+++ b/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"));
diff --git a/week-2/implement/to-pounds.js b/week-2/implement/to-pounds.js
index 7add3d05..1fbaf2c8 100644
--- a/week-2/implement/to-pounds.js
+++ b/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));
diff --git a/week-2/implement/vat.js b/week-2/implement/vat.js
index 44c38d74..227b5881 100644
--- a/week-2/implement/vat.js
+++ b/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));
diff --git a/week-2/interpret/time-format.js b/week-2/interpret/time-format.js
index 15793e20..6ad58740 100644
--- a/week-2/interpret/time-format.js
+++ b/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");
+    //}
\ No newline at end of file
diff --git a/week-3/implement/get-angle-type.js b/week-3/implement/get-angle-type.js
index 9dd3a210..d8c6cd35 100644
--- a/week-3/implement/get-angle-type.js
+++ b/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));
diff --git a/week-3/implement/get-card-value.js b/week-3/implement/get-card-value.js
index 0dd74fbc..16b3f6fd 100644
--- a/week-3/implement/get-card-value.js
+++ b/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,
diff --git a/week-3/implement/is-proper-fraction.js b/week-3/implement/is-proper-fraction.js
index 31da32b5..26dfde62 100644
--- a/week-3/implement/is-proper-fraction.js
+++ b/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
diff --git a/week-3/implement/is-valid-triangle.js b/week-3/implement/is-valid-triangle.js
index 7b22836b..ac46ba06 100644
--- a/week-3/implement/is-valid-triangle.js
+++ b/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:
diff --git a/week-4/implement/creditCardValidator.js b/week-4/implement/creditCardValidator.js
new file mode 100644
index 00000000..d094c01d
--- /dev/null
+++ b/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";
+  }
+}