From fd35263be4085dffeba24649b6939836028c8ff5 Mon Sep 17 00:00:00 2001
From: sasarkarimi <106243476+sasarkarimi@users.noreply.github.com>
Date: Sat, 27 Aug 2022 12:44:04 +0100
Subject: [PATCH] js

---
 exercises/C-variables/exercise.js             |  4 +++-
 exercises/D-strings/exercise.js               |  5 +++--
 exercises/E-strings-concatenation/exercise.js |  7 +++++--
 exercises/F-strings-methods/exercise.js       |  4 +++-
 exercises/F-strings-methods/exercise2.js      |  7 ++++---
 exercises/G-numbers/exercise.js               |  4 ++++
 exercises/I-floats/exercise.js                |  5 ++++-
 exercises/J-functions/exercise.js             |  3 ++-
 exercises/J-functions/exercise2.js            |  3 ++-
 exercises/K-functions-parameters/exercise.js  | 17 +++++++++--------
 exercises/K-functions-parameters/exercise2.js |  5 ++++-
 exercises/K-functions-parameters/exercise3.js | 10 ++++++----
 exercises/K-functions-parameters/exercise4.js |  8 ++++++--
 exercises/K-functions-parameters/exercise5.js |  8 +++++---
 exercises/L-functions-nested/exercise.js      | 13 +++++++++++++
 mandatory/1-syntax-errors.js                  | 17 +++++++----------
 mandatory/2-logic-error.js                    | 12 +++++-------
 mandatory/3-function-output.js                |  4 ++--
 mandatory/4-tax.js                            | 16 ++++++++++------
 19 files changed, 97 insertions(+), 55 deletions(-)

diff --git a/exercises/C-variables/exercise.js b/exercises/C-variables/exercise.js
index a6bbb9786..6a1175bba 100644
--- a/exercises/C-variables/exercise.js
+++ b/exercises/C-variables/exercise.js
@@ -1,3 +1,5 @@
 // Start by creating a variable `greeting`
-
+var greeting = "Hello world";
 console.log(greeting);
+console.log(greeting);
+console.log(greeting);
\ No newline at end of file
diff --git a/exercises/D-strings/exercise.js b/exercises/D-strings/exercise.js
index 2cffa6a81..f2038ba0c 100644
--- a/exercises/D-strings/exercise.js
+++ b/exercises/D-strings/exercise.js
@@ -1,3 +1,4 @@
-// Start by creating a variable `message`
+var message = "This is a string";
+var messageType = typeof message;
 
-console.log(message);
+console.log(messageType); // logs 'string'
diff --git a/exercises/E-strings-concatenation/exercise.js b/exercises/E-strings-concatenation/exercise.js
index 2cffa6a81..c27a883a8 100644
--- a/exercises/E-strings-concatenation/exercise.js
+++ b/exercises/E-strings-concatenation/exercise.js
@@ -1,3 +1,6 @@
-// Start by creating a variable `message`
+var greetingStart = "Hello, my name is ";
+var name = "Daniel";
 
-console.log(message);
+var greeting = greetingStart + name;
+
+console.log(greeting); // Logs "Hello, my name is Daniel"
\ No newline at end of file
diff --git a/exercises/F-strings-methods/exercise.js b/exercises/F-strings-methods/exercise.js
index 2cffa6a81..8a0db3592 100644
--- a/exercises/F-strings-methods/exercise.js
+++ b/exercises/F-strings-methods/exercise.js
@@ -1,3 +1,5 @@
 // Start by creating a variable `message`
+var name1= "bahareh";
+var nameLength = name1.length;
 
-console.log(message);
+console.log(nameLength)
\ No newline at end of file
diff --git a/exercises/F-strings-methods/exercise2.js b/exercises/F-strings-methods/exercise2.js
index b4b46943d..216c3ab04 100644
--- a/exercises/F-strings-methods/exercise2.js
+++ b/exercises/F-strings-methods/exercise2.js
@@ -1,3 +1,4 @@
-const name = " Daniel  ";
-
-console.log(message);
+const name1 = " Daniel  ";
+const message= "hello i am a ";
+var nameLength = name1.length;
+console.log("my name is" +" "+ name1.trim() + " and my name is "+ nameLength + "character.");
\ No newline at end of file
diff --git a/exercises/G-numbers/exercise.js b/exercises/G-numbers/exercise.js
index 49e7bc00b..f7861b902 100644
--- a/exercises/G-numbers/exercise.js
+++ b/exercises/G-numbers/exercise.js
@@ -1 +1,5 @@
 // Start by creating a variables `numberOfStudents` and `numberOfMentors`
+var sum = 10 + 2; // 12
+var product = 10 * 2; // 20
+var quotient = 10 / 2; // 5
+var difference = 10 - 2; // 8
\ No newline at end of file
diff --git a/exercises/I-floats/exercise.js b/exercises/I-floats/exercise.js
index a5bbcd852..200268395 100644
--- a/exercises/I-floats/exercise.js
+++ b/exercises/I-floats/exercise.js
@@ -1,2 +1,5 @@
-var numberOfStudents = 15;
+const numberOfStudents = 15;
 var numberOfMentors = 8;
+var preciseNum=(numberOfMentors / numberOfStudents) *100;
+var roughNum = Math.round(preciseNum);
+console.log(roughNum , preciseNum);
diff --git a/exercises/J-functions/exercise.js b/exercises/J-functions/exercise.js
index 0ae5850e5..eb2eedf88 100644
--- a/exercises/J-functions/exercise.js
+++ b/exercises/J-functions/exercise.js
@@ -1,7 +1,8 @@
 function halve(number) {
   // complete the function here
+  return number /2;
 }
 
 var result = halve(12);
 
-console.log(result);
+console.log(result);
\ No newline at end of file
diff --git a/exercises/J-functions/exercise2.js b/exercises/J-functions/exercise2.js
index 82ef5e780..a38d87d69 100644
--- a/exercises/J-functions/exercise2.js
+++ b/exercises/J-functions/exercise2.js
@@ -1,7 +1,8 @@
 function triple(number) {
   // complete function here
+  return number * 3;
 }
 
 var result = triple(12);
 
-console.log(result);
+console.log(result);
\ No newline at end of file
diff --git a/exercises/K-functions-parameters/exercise.js b/exercises/K-functions-parameters/exercise.js
index 8d5db5e69..49aaf3f4f 100644
--- a/exercises/K-functions-parameters/exercise.js
+++ b/exercises/K-functions-parameters/exercise.js
@@ -1,9 +1,10 @@
 // Complete the function so that it takes input parameters
-function multiply() {
-  // Calculate the result of the function and return it
-}
-
-// Assign the result of calling the function the variable `result`
-var result = multiply(3, 4);
-
-console.log(result);
+function multiply(a , b) {
+  return a*b;
+    // Calculate the result of the function and return it
+  }
+  
+  // Assign the result of calling the function the variable `result`
+  var result = multiply(3, 4);
+  
+  console.log(result);
\ No newline at end of file
diff --git a/exercises/K-functions-parameters/exercise2.js b/exercises/K-functions-parameters/exercise2.js
index db7a8904b..fab001cf6 100644
--- a/exercises/K-functions-parameters/exercise2.js
+++ b/exercises/K-functions-parameters/exercise2.js
@@ -1,5 +1,8 @@
 // Declare your function first
 
+function divide(a , b) {
+    return a/b;
+}
 var result = divide(3, 4);
 
-console.log(result);
+console.log(result);
\ No newline at end of file
diff --git a/exercises/K-functions-parameters/exercise3.js b/exercises/K-functions-parameters/exercise3.js
index 537e9f4ec..e7b42a8e8 100644
--- a/exercises/K-functions-parameters/exercise3.js
+++ b/exercises/K-functions-parameters/exercise3.js
@@ -1,5 +1,7 @@
 // Write your function here
-
-var greeting = createGreeting("Daniel");
-
-console.log(greeting);
+function createGreeting(name){
+    return "hello i am a " + name;
+    }
+    var greeting = createGreeting("Daniel");
+    
+    console.log(greeting);
\ No newline at end of file
diff --git a/exercises/K-functions-parameters/exercise4.js b/exercises/K-functions-parameters/exercise4.js
index 7ab44589e..80e1a1383 100644
--- a/exercises/K-functions-parameters/exercise4.js
+++ b/exercises/K-functions-parameters/exercise4.js
@@ -1,5 +1,9 @@
 // Declare your function first
 
 // Call the function and assign to a variable `sum`
-
-console.log(sum);
+function addNumbers(a , b){
+    return a + b;
+    }
+    const sum=addNumbers(13 ,124)
+    
+    console.log(sum);
\ No newline at end of file
diff --git a/exercises/K-functions-parameters/exercise5.js b/exercises/K-functions-parameters/exercise5.js
index 7c5bcd605..0f98c9ff2 100644
--- a/exercises/K-functions-parameters/exercise5.js
+++ b/exercises/K-functions-parameters/exercise5.js
@@ -1,5 +1,7 @@
 // Declare your function here
+function createLongGreeting(name , number){
+    return "My name is " + name +" "+ "and i am " + number +" "+"years old!"
+}
+    const greeting = createLongGreeting("Daniel", 30);
 
-const greeting = createLongGreeting("Daniel", 30);
-
-console.log(greeting);
+console.log(greeting);
\ No newline at end of file
diff --git a/exercises/L-functions-nested/exercise.js b/exercises/L-functions-nested/exercise.js
index a5d377442..742f4e41b 100644
--- a/exercises/L-functions-nested/exercise.js
+++ b/exercises/L-functions-nested/exercise.js
@@ -3,3 +3,16 @@ var mentor2 = "Irina";
 var mentor3 = "Mimi";
 var mentor4 = "Rob";
 var mentor5 = "Yohannes";
+
+  
+  function createCreeting(name) {
+    const upperName= name.toUpperCase();
+    const message =
+      "hello " + upperName;
+    return message;
+  }
+  console.log(createCreeting(mentor1));
+  console.log(createCreeting(mentor2));
+  console.log(createCreeting(mentor3));
+  console.log(createCreeting(mentor4));
+  console.log(createCreeting(mentor5));
\ No newline at end of file
diff --git a/mandatory/1-syntax-errors.js b/mandatory/1-syntax-errors.js
index a10cc9ac2..0d27af9ae 100644
--- a/mandatory/1-syntax-errors.js
+++ b/mandatory/1-syntax-errors.js
@@ -1,27 +1,24 @@
 // There are syntax errors in this code - can you fix it to pass the tests?
 
-function addNumbers(a b c) {
+function addNumbers(a ,b, c) {
   return a + b + c;
 }
 
-function introduceMe(name, age)
-  return "Hello, my name is " + name "and I am " age + "years old";
-
+function introduceMe(name, age){
+  return "Hello, my name is " + name + " "+"and I am "+ age +" " +"years old";
+}
 function getTotal(a, b) {
-  total = a ++ b;
+ const total = a + b;
 
-  return "The total is total";
+  return "The total is " + total;
 }
 
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====
-
 There are some Tests in this file that will help you work out if your code is working.
-
 To run the tests for just this one file, type `npm test -- --testPathPattern 1-syntax-errors` into your terminal
 (Reminder: You must have run `npm install` one time before this will work!)
-
 ===================================================
 */
 
@@ -37,4 +34,4 @@ test("introduceMe function returns the correct string", () => {
 
 test("getTotal returns a string describing the total", () => {
   expect(getTotal(23, 5)).toEqual("The total is 28");
-});
+});
\ No newline at end of file
diff --git a/mandatory/2-logic-error.js b/mandatory/2-logic-error.js
index 9cca7603b..c8d740a8a 100644
--- a/mandatory/2-logic-error.js
+++ b/mandatory/2-logic-error.js
@@ -1,24 +1,22 @@
 // The syntax for this function is valid but it has an error, find it and fix it.
 
 function trimWord(word) {
-  return wordtrim();
+  return word.trim();
 }
 
 function getStringLength(word) {
-  return "word".length();
+  return word.length;
 }
 
 function multiply(a, b, c) {
-  a * b * c;
-  return;
+ return a * b * c;
+  
 }
 
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====
-
 There are some Tests in this file that will help you work out if your code is working.
-
 To run the tests for just this one file, type `npm test -- --testPathPattern 2-logic-error` into your terminal
 (Reminder: You must have run `npm install` one time before this will work!)
 ===================================================
@@ -48,4 +46,4 @@ test("multiply multiplies numbers", () => {
 
 test("multiply multiplies different numbers", () => {
   expect(multiply(2, 3, 4)).toEqual(24);
-});
+});
\ No newline at end of file
diff --git a/mandatory/3-function-output.js b/mandatory/3-function-output.js
index 5a953ba60..373092421 100644
--- a/mandatory/3-function-output.js
+++ b/mandatory/3-function-output.js
@@ -9,6 +9,8 @@ function combine2Words(word1, word2) {
 }
 
 function concatenate(firstWord, secondWord, thirdWord) {
+  return firstWord.concat(" ", secondWord, " ", thirdWord)
+  
   // Write the body of this function to concatenate three words together.
   // Look at the test case below to understand what this function is expected to return.
 }
@@ -16,9 +18,7 @@ function concatenate(firstWord, secondWord, thirdWord) {
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====
-
 There are some Tests in this file that will help you work out if your code is working.
-
 To run the tests for just this one file, type `npm test -- --testPathPattern 3-function-output` into your terminal
 (Reminder: You must have run `npm install` one time before this will work!)
 ==================================
diff --git a/mandatory/4-tax.js b/mandatory/4-tax.js
index ba77c7ae2..1f3ef91e2 100644
--- a/mandatory/4-tax.js
+++ b/mandatory/4-tax.js
@@ -5,7 +5,10 @@
   Sales tax is 20% of the price of the product.
 */
 
-function calculateSalesTax() {}
+function calculateSalesTax(price) {
+  const tax=(20*price) / 100;
+  return price + tax;
+}
 
 /*
   CURRENCY FORMATTING
@@ -13,18 +16,19 @@ function calculateSalesTax() {}
   The business has informed you that prices must have 2 decimal places
   They must also start with the currency symbol
   Write a function that adds tax to a number, and then transforms the total into the format £0.00
-
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
-function addTaxAndFormatCurrency() {}
+
+  function addTaxAndFormatCurrency(price) {
+
+    return   `£${calculateSalesTax(price).toFixed(2)}`;
+}
 
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====
-
 There are some Tests in this file that will help you work out if your code is working.
-
 To run the tests for just this one file, type `npm test -- --testPathPattern 4-tax` into your terminal
 (Reminder: You must have run `npm install` one time before this will work!)
 ===================================================
@@ -52,4 +56,4 @@ test("addTaxAndFormatCurrency for £17.50", () => {
 
 test("addTaxAndFormatCurrency for £34", () => {
   expect(addTaxAndFormatCurrency(34)).toEqual("£40.80");
-});
+});
\ No newline at end of file