diff --git a/Untitled-1.js b/Untitled-1.js
new file mode 100644
index 0000000..ee41955
--- /dev/null
+++ b/Untitled-1.js
@@ -0,0 +1,4 @@
+const b = {qwe: 123, qw: 456};
+const c = b
+
+console.log(c)
\ No newline at end of file
diff --git a/Week1/QA dir.js b/Week1/QA dir.js
new file mode 100644
index 0000000..3a61b8b
--- /dev/null
+++ b/Week1/QA dir.js	
@@ -0,0 +1,10 @@
+let banana = {}
+const fruits= []
+banana.fruit = true;
+
+fruits.push(banana)
+console.log(fruits);
+
+
+banana = {fruit: true, color: 'yellow'};
+console.log(banana);
diff --git a/Week1/practice-exercises/1-remove-the-comma.js b/Week1/practice-exercises/1-remove-the-comma.js
index b71cffd..fba26b7 100644
--- a/Week1/practice-exercises/1-remove-the-comma.js
+++ b/Week1/practice-exercises/1-remove-the-comma.js
@@ -6,7 +6,8 @@
  */
 
 let myString = 'hello,this,is,a,difficult,to,read,sentence';
-
+myString = myString.replace(/,/g, ' '); // Replace all commas with spaces
+console.log(myString); // Log the modified string to the console
 
 
 /* --- Code that will test your solution, do NOT change. Write above this line --- */
diff --git a/Week1/practice-exercises/2-even-odd-reporter.js b/Week1/practice-exercises/2-even-odd-reporter.js
index 6edf23e..886ba40 100644
--- a/Week1/practice-exercises/2-even-odd-reporter.js
+++ b/Week1/practice-exercises/2-even-odd-reporter.js
@@ -7,3 +7,12 @@
  *  If it's even, log to the console The number [PUT_NUMBER_HERE] is even!.
  */
 
+let num = 0;
+while (num <= 20) {
+  if (num % 2 == 0) {
+    console.log(`The number ${num} is even!`);
+  } else {
+    console.log(`The number ${num} is odd!`);
+  };
+  num ++ ;
+}
\ No newline at end of file
diff --git a/Week1/practice-exercises/3-recipe-card.js b/Week1/practice-exercises/3-recipe-card.js
index 24bcb54..40ad597 100644
--- a/Week1/practice-exercises/3-recipe-card.js
+++ b/Week1/practice-exercises/3-recipe-card.js
@@ -12,3 +12,27 @@
  *   Ingredients: 4 eggs, 2 strips of bacon, 1 tsp salt/pepper
  */
 
+const recipe = {};
+
+recipe.name = "Omelette";
+recipe.serves = 2;
+recipe.ingredients = ["4 eggs", "2 strips of bacon", "1 tsp salt/pepper"];
+
+for (let i in recipe){
+
+    // good but more difficult code below
+    /*let value = Array.isArray(recipe[i]) ? recipe[i].join(", ") : recipe[i];*/
+
+    let value;                              // create a variable to store the property value
+    if (Array.isArray(recipe[i])) {         // check if the value is an array
+        value = recipe[i].join(", ");     // if it's an array, join all elements with a comma
+    } 
+    else {                                  // if it's not an array, just keep the value as it is
+        value = recipe[i];
+    }
+
+    //optional head letter ///// .charAt(0) -  RETURNS JUST ONE SIGN
+    let head = i.charAt(0).toUpperCase() + i.slice(1);
+    
+    console.log(head + ": " + value);
+} 
diff --git a/Week1/practice-exercises/4-reading-list.js b/Week1/practice-exercises/4-reading-list.js
index f535657..6d79c13 100644
--- a/Week1/practice-exercises/4-reading-list.js
+++ b/Week1/practice-exercises/4-reading-list.js
@@ -9,3 +9,31 @@
  *  If you haven't read it log a string like You still need to read "The Lord of the Rings"
  */
 
+let bookList = [
+  {
+    title: "The Hobbit",
+    author: "J.R.R. Tolkien",
+    alreadyRead: true
+  },
+  {
+    title: "Harry Potter",
+    author: "J.K. Rowling",
+    alreadyRead: true
+  },
+  {
+    title: "Tales of Demons and Gods",
+    author: "Mad Snail",
+    alreadyRead: false
+  }
+];
+
+for (i in bookList) {
+    let book = bookList[i];
+    console.log(`${book.title} by ${book.author}`);
+
+    if (book.alreadyRead) {
+        console.log(`You already read "${book.title}"`);
+    } else {
+        console.log(`You still need to read "${book.title}"`);
+    }
+}
\ No newline at end of file
diff --git a/Week1/practice-exercises/5-who-wants-a-drink.js b/Week1/practice-exercises/5-who-wants-a-drink.js
index f37f02b..aa3e73b 100644
--- a/Week1/practice-exercises/5-who-wants-a-drink.js
+++ b/Week1/practice-exercises/5-who-wants-a-drink.js
@@ -8,4 +8,32 @@
  */
 
 // There are 3 different types of drinks:
-const drinkTypes = ['cola', 'lemonade', 'water'];
\ No newline at end of file
+const drinkTypes = ['cola', 'lemonade', 'water'];
+
+const drinkTray = [];
+
+//counter for do - while loop
+let counter = {
+    'cola': 0,
+    'lemonade': 0,
+    'water': 0
+}
+
+//loop according task
+for (let i = 0; i < 5; i++) {
+    let randomItem;
+
+    //take 1 random drink
+    do {
+        let randomIndex = Math.floor(Math.random() * drinkTypes.length);
+        randomItem = drinkTypes[randomIndex];      
+
+        // 2 item max 
+    } while (counter[randomItem] >= 2);
+
+    drinkTray.push(randomItem);
+
+    counter[randomItem] ++ ;
+}
+
+console.log(`Hey guys, I brought a ${drinkTray.join(', ')}!`);
\ No newline at end of file
diff --git a/Week1/prep-exercises/1-traffic-light/traffic-light-1.js b/Week1/prep-exercises/1-traffic-light/traffic-light-1.js
index f1d9169..008fb59 100644
--- a/Week1/prep-exercises/1-traffic-light/traffic-light-1.js
+++ b/Week1/prep-exercises/1-traffic-light/traffic-light-1.js
@@ -12,6 +12,15 @@ while (rotations < 2) {
   const currentState = trafficLight.state;
   console.log("The traffic light is on", currentState);
 
+  if (currentState == "green") {
+    trafficLight.state = "orange";
+  } else if (currentState == "orange") {
+    trafficLight.state = "red";
+  } else if (currentState == "red") {
+    rotations += 1;
+    trafficLight.state = "green";
+  }
+
   // TODO
   // if the color is green, turn it orange
   // if the color is orange, turn it red
diff --git a/Week1/prep-exercises/1-traffic-light/traffic-light-2.js b/Week1/prep-exercises/1-traffic-light/traffic-light-2.js
index 8c6ba95..583e48c 100644
--- a/Week1/prep-exercises/1-traffic-light/traffic-light-2.js
+++ b/Week1/prep-exercises/1-traffic-light/traffic-light-2.js
@@ -14,6 +14,14 @@ while (cycle < 2) {
   const currentState = trafficLight.possibleStates[trafficLight.stateIndex];
   console.log("The traffic light is on", currentState);
 
+  // Update the stateIndex to the next state
+  trafficLight.stateIndex = (trafficLight.stateIndex + 1) % trafficLight.possibleStates.length;
+
+  if (currentState == 'red') {
+    cycle ++ ; // Increment cycle only when the light is red
+  }
+  
+
   // TODO
   // if the color is green, turn it orange
   // if the color is orange, turn it red
diff --git a/Week2/prep-exercises/1-traffic-light/traffic-light.js b/Week2/prep-exercises/1-traffic-light/traffic-light.js
index f4a5c1a..f3951ed 100644
--- a/Week2/prep-exercises/1-traffic-light/traffic-light.js
+++ b/Week2/prep-exercises/1-traffic-light/traffic-light.js
@@ -9,14 +9,25 @@ function getCurrentState(trafficLight) {
   // TODO
   // Should return the current state (i.e. colour) of the `trafficLight`
   // object passed as a parameter.
+  return(trafficLight.possibleStates[trafficLight.stateIndex])
 }
 
 function getNextStateIndex(trafficLight) {
   // TODO
   // Return the index of the next state of the `trafficLight` such that:
   // - if the color is green, it will turn to orange
-  // - if the color is orange, it will turn to red
+  // - if the color is orane, it will turn to red
   // - if the color is red, it will turn to green
+  if (trafficLight.stateIndex == 0){
+    trafficLight.stateIndex += 1;
+
+  } else if (trafficLight.stateIndex == 1){
+    trafficLight.stateIndex += 1;
+
+  } else if (trafficLight.stateIndex == 2){
+    trafficLight.stateIndex = 0;
+  }
+  return(trafficLight.stateIndex)
 }
 
 // This function loops for the number of seconds specified by the `secs`
diff --git a/Week2/prep-exercises/2-experiments/index.js b/Week2/prep-exercises/2-experiments/index.js
index 7e5aa92..30cff77 100644
--- a/Week2/prep-exercises/2-experiments/index.js
+++ b/Week2/prep-exercises/2-experiments/index.js
@@ -13,6 +13,11 @@ function runExperiment(sampleSize) {
   //    for keeping a count how many times the value 1 is thrown, the second
   //    element for value 2, etc.
 
+  for (let i = 0; i < sampleSize; i++) {
+    let valueCount = Math.floor(Math.random() * 6) + 1;
+    valueCounts[valueCount - 1] += 1;
+  }
+
   const results = [];
 
   // TODO
@@ -25,6 +30,9 @@ function runExperiment(sampleSize) {
   //    two decimals, e.g. '14.60'.
   // 3. Then push that string onto the `results` array.
 
+  for (let i of valueCounts){
+    results.push ((i * 100 / sampleSize).toFixed(2)); //we ccan use push(Number()) if we need int
+  }
   return results;
 }
 
@@ -41,6 +49,10 @@ function main() {
   // [ '26.00', '17.00', '10.00', '19.00', '16.00', '12.00' ] 100
   // [ '14.60', '17.10', '19.30', '15.50', '16.70', '16.80' ] 1000
   // [ '16.71', '16.68', '16.69', '16.66', '16.67', '16.59' ] 1000000
+
+  for (let sampleSize of sampleSizes){
+    console.log(runExperiment(sampleSize), sampleSize) //call func runExperiment
+  }
 }
 
-main();
+main();
\ No newline at end of file
diff --git a/Week3/prep-exercises/1-hyf-program/1-find-mentors.js b/Week3/prep-exercises/1-hyf-program/1-find-mentors.js
index 72baa61..1b711fc 100644
--- a/Week3/prep-exercises/1-hyf-program/1-find-mentors.js
+++ b/Week3/prep-exercises/1-hyf-program/1-find-mentors.js
@@ -1,26 +1,50 @@
 import { modules, students, mentors, classes } from "./hyf.js";
 
-/**
- * Tjebbe would like help to get a list of possible mentors for a module.
- * Fill in this function that finds all the mentors that can teach the given module.
- *
- * It should return an array of names. So something like:
- *  ['John', 'Mary']
- */
+/*
 const possibleMentorsForModule = (moduleName) => {
-  // TODO complete this function
+
+
+  const teachers = [];
+  mentors.forEach((mentor) => {
+    if (mentor.canTeach.includes(moduleName)) {
+      teachers.push(mentor.name);
+    }
+  });
+  return teachers;
 };
+*/
+
+
+ //alternative solution
+const possibleMentorsForModule = (moduleName) =>
+  mentors
+    .filter(m => m.canTeach.includes(moduleName))
+    .map(m => m.name);
+
+
 // You can uncomment out this line to try your function
-// console.log(possibleMentorsForModule('using-apis'));
-
-/**
- * Tjebbe wants to make it even easier for himself.
- * Fill in this function that chooses a random mentor to teach the given module.
- *
- * It should return a single name.
- */
+console.log(possibleMentorsForModule('using-apis'));
+
 const findMentorForModule = (moduleName) => {
-  // TODO complete this function
+
+  const theChosen = mentors                                     // new array of names
+    .filter(m => m.canTeach.includes(moduleName))               // filtered by module
+  const index = Math.floor(Math.random() * theChosen.length);   // randon index
+  return theChosen[index].name;                                 // name with this index
+  
+ //alternative solution
+
+  /*const teachers = [];
+  mentors.forEach((mentor) => {
+    if (mentor.canTeach.includes(moduleName)) {
+      teachers.push(mentor.name);
+    }
+  });
+  const index = Math.floor(Math.random() * teachers.length);
+  const theChosen = teachers[index];
+
+  return theChosen;
+  */
 };
 // You can uncomment out this line to try your function
-// console.log(findMentorForModule('javascript'));
+  console.log(findMentorForModule('javascript'));
diff --git a/Week3/prep-exercises/1-hyf-program/2-class-list.js b/Week3/prep-exercises/1-hyf-program/2-class-list.js
index 44d2798..0e97e44 100644
--- a/Week3/prep-exercises/1-hyf-program/2-class-list.js
+++ b/Week3/prep-exercises/1-hyf-program/2-class-list.js
@@ -1,36 +1,48 @@
 import { modules, students, mentors, classes } from "./hyf.js";
 
-/**
- * We would like to have a list of everyone that is currently participating in a class.
- * This means the students, but also the mentors that are currently teaching the class.
- * The students should be self explanatory, but to find the mentors you will need to follow these steps:
- * - Check what the `currentModule` of the class is
- * - Find the mentor(s) that are `nowTeaching` that module
- *
- * Should return the list of names and their roles. So something like:
- *
- *  [{ name: 'John', role: 'student' }, { name: 'Mary', role: 'mentor' }]
- */
 const getPeopleOfClass = (className) => {
-  // TODO complete this function
+
+      // нахожу через класс(массив) текущий модуль // find current module through classes
+  const moduleName = classes.find((c) => c.name === className).currentModule;
+  // console.log (moduleName);
+
+  
+  const studentNames = students                 //find student's name
+    .filter(s => s.class === className)
+    .map(s => ({name: s.name, role: "student" }));
+    // console.log (studentNames);
+    
+  const teacherNames = mentors                    //find mentor's name
+    .filter(m => m.nowTeaching === moduleName)
+    .map(m => ({name: m.name, role: "mentor" }));
+    // console.log (teacherNames);
+
+  if (studentNames.length === 0) studentNames.push({ name: "NO student", role: "student" });
+  if (teacherNames.length === 0) teacherNames.push({ name: "No mentor", role: "mentor" });
+
+  return [...studentNames, ...teacherNames]
+
 };
 // You can uncomment out this line to try your function
-// console.log(getPeopleOfClass('class34'));
-
-/**
- * We would like to have a complete overview of the current active classes.
- * First find the active classes, then for each get the people of that class.
- *
- * Should return an object with the class names as properties.
- * Each class name property contains an array identical to the return from `getPeopleFromClass`. So something like:
- *
- *  {
- *    class34: [{ name: 'John', role: 'student' }, { name: 'Mary', role: 'mentor' }],
- *    class35: [{ name: 'Jane', role: 'student' }, { name: 'Steve', role: 'mentor' }]
- *  }
- */
+console.log(getPeopleOfClass('class34'));
+
 const getActiveClasses = () => {
-  // TODO complete this function
+  const activeClasses = classes                //make array of classes name
+    .filter(a => a.active)
+    .map(s => s.name);
+    //  console.log (activeClasses);
+    
+  const finalAnswer = {}
+  for (let numberClass of activeClasses){
+    finalAnswer[numberClass] = getPeopleOfClass(numberClass);
+  }
+
+  return finalAnswer;
+// console.log(activeMentors);
+ 
 };
+
+
+
 // You can uncomment out this line to try your function
-// console.log(getActiveClasses());
+console.log(getActiveClasses());
diff --git a/Week4/prep-exercises/1-wallet/ex2-classes.js b/Week4/prep-exercises/1-wallet/ex2-classes.js
index f016137..b3d9d4c 100644
--- a/Week4/prep-exercises/1-wallet/ex2-classes.js
+++ b/Week4/prep-exercises/1-wallet/ex2-classes.js
@@ -3,16 +3,21 @@ import eurosFormatter from './euroFormatter.js';
 class Wallet {
   #name;
   #cash;
+  #dailyAllowance;
+  #dayTotalWithdrawals;
 
-  constructor(name, cash) {
+
+  constructor(name, cash = 0, dailyAllowance = 40) {
     this.#name = name;
-    this.#cash = cash;
+    this.#cash = cash;  
+    this.#dailyAllowance = dailyAllowance;
+    this.#dayTotalWithdrawals = 0;
   }
 
   get name() {
     return this.#name;
   }
-
+  
   deposit(amount) {
     this.#cash += amount;
   }
@@ -23,7 +28,13 @@ class Wallet {
       return 0;
     }
 
+    if (this.#dayTotalWithdrawals + amount > this.#dailyAllowance) {
+      console.log(`Insufficient remaining daily allowance!`);
+      return 0;
+    }
+
     this.#cash -= amount;
+    this.#dayTotalWithdrawals += amount;
     return amount;
   }
 
@@ -37,6 +48,17 @@ class Wallet {
     wallet.deposit(withdrawnAmount);
   }
 
+  setDailyAllowance(newAllowance){
+    this.#dailyAllowance = newAllowance;
+    console.log(
+      `Daily allowance set to: ${eurosFormatter.format(newAllowance)}`
+    );
+  }
+
+  resetDailyAllowance(){
+    this.#dayTotalWithdrawals = 0;
+  };
+
   reportBalance() {
     console.log(
       `Name: ${this.name}, balance: ${eurosFormatter.format(this.#cash)}`
@@ -58,6 +80,9 @@ function main() {
   walletJack.reportBalance();
   walletJoe.reportBalance();
   walletJane.reportBalance();
+
+  walletJack.setDailyAllowance(100); // limit change
+  walletJack.withdraw(50); // test limit change
 }
 
 main();
diff --git a/Week4/prep-exercises/1-wallet/ex3-object.js b/Week4/prep-exercises/1-wallet/ex3-object.js
index e94faac..212fb3b 100644
--- a/Week4/prep-exercises/1-wallet/ex3-object.js
+++ b/Week4/prep-exercises/1-wallet/ex3-object.js
@@ -1,9 +1,11 @@
 import eurosFormatter from './euroFormatter.js';
 
-function createWallet(name, cash = 0) {
+function createWallet(name, cash = 0, dailyAllowance = 40) {
   return {
     _name: name,
     _cash: cash,
+    _dailyAllowance: dailyAllowance,
+    _dayTotalWithdrawals: 0,
 
     deposit: function (amount) {
       this._cash += amount;
@@ -15,7 +17,13 @@ function createWallet(name, cash = 0) {
         return 0;
       }
 
+      if (this._dayTotalWithdrawals + amount > this._dailyAllowance) {
+        console.log(`Insufficient remaining daily allowance!`);
+        return 0;
+      }
+
       this._cash -= amount;
+      this._dayTotalWithdrawals += amount;
       return amount;
     },
 
@@ -29,12 +37,24 @@ function createWallet(name, cash = 0) {
       wallet.deposit(withdrawnAmount);
     },
 
+
+    setDailyAllowance(newAllowance){
+      this._dailyAllowance = newAllowance;
+      console.log(
+        `Daily allowance set to: ${eurosFormatter.format(newAllowance)}`
+      );
+    },
+
     reportBalance: function () {
       console.log(
         `Name: ${this._name}, balance: ${eurosFormatter.format(this._cash)}`
       );
     },
 
+    resetDailyAllowance(){
+     this._dayTotalWithdrawals = 0;
+    },
+
     getName: function () {
       return this._name;
     },
@@ -55,6 +75,8 @@ function main() {
   walletJack.reportBalance();
   walletJoe.reportBalance();
   walletJane.reportBalance();
+  walletJack.setDailyAllowance(100); // limit change
+  walletJack.withdraw(50); // test limit change
 }
 
 main();
diff --git a/Week4/prep-exercises/1-wallet/ex4-object-shared-methods.js b/Week4/prep-exercises/1-wallet/ex4-object-shared-methods.js
index bd4fd20..cec38d2 100644
--- a/Week4/prep-exercises/1-wallet/ex4-object-shared-methods.js
+++ b/Week4/prep-exercises/1-wallet/ex4-object-shared-methods.js
@@ -10,7 +10,13 @@ function withdraw(amount) {
     return 0;
   }
 
+  if (this._dayTotalWithdrawals + amount > this._dailyAllowance) {
+    console.log(`Insufficient remaining daily allowance!`);
+    return 0;
+  }
+
   this._cash -= amount;
+  this._dayTotalWithdrawals += amount;
   return amount;
 }
 
@@ -24,6 +30,17 @@ function transferInto(wallet, amount) {
   wallet.deposit(withdrawnAmount);
 }
 
+function setDailyAllowance(newAllowance){
+  this._dailyAllowance = newAllowance;
+  console.log(
+    `Daily allowance set to: ${eurosFormatter.format(newAllowance)}`
+  );
+}
+
+function resetDailyAllowance(){
+  this._dayTotalWithdrawals = 0;
+}
+
 function reportBalance() {
   console.log(
     `Name: ${this._name}, balance: ${eurosFormatter.format(this._cash)}`
@@ -34,7 +51,7 @@ function getName() {
   return this._name;
 }
 
-function createWallet(name, cash = 0) {
+function createWallet(name, cash = 0, dailyAllowance = 40) {
   return {
     _name: name,
     _cash: cash,
@@ -43,6 +60,11 @@ function createWallet(name, cash = 0) {
     transferInto,
     reportBalance,
     getName,
+    _dayTotalWithdrawals: 0,
+    _dailyAllowance: dailyAllowance,
+    resetDailyAllowance,
+    setDailyAllowance,
+
   };
 }
 
@@ -60,6 +82,8 @@ function main() {
   walletJack.reportBalance();
   walletJoe.reportBalance();
   walletJane.reportBalance();
+  walletJack.setDailyAllowance(100); // limit change
+  walletJack.withdraw(50); // test limit change
 }
 
 main();
diff --git a/Week4/prep-exercises/1-wallet/ex5-prototype.js b/Week4/prep-exercises/1-wallet/ex5-prototype.js
index 7cba410..2d7adc2 100644
--- a/Week4/prep-exercises/1-wallet/ex5-prototype.js
+++ b/Week4/prep-exercises/1-wallet/ex5-prototype.js
@@ -1,8 +1,10 @@
 import eurosFormatter from './euroFormatter.js';
 
-function Wallet(name, cash) {
+function Wallet(name, cash = 0, dailyAllowance = 40) {
   this._name = name;
   this._cash = cash;
+  this._dayTotalWithdrawals = 0;
+  this._dailyAllowance = dailyAllowance;
 }
 
 Wallet.prototype.deposit = function (amount) {
@@ -15,7 +17,13 @@ Wallet.prototype.withdraw = function (amount) {
     return 0;
   }
 
+  if (this._dayTotalWithdrawals + amount > this._dailyAllowance) {
+    console.log(`Insufficient remaining daily allowance!`);
+    return 0;
+  }
+
   this._cash -= amount;
+  this._dayTotalWithdrawals += amount;
   return amount;
 };
 
@@ -29,6 +37,20 @@ Wallet.prototype.transferInto = function (wallet, amount) {
   wallet.deposit(withdrawnAmount);
 };
 
+
+
+Wallet.prototype.setDailyAllowance = function (newAllowance) {
+  this._dailyAllowance = newAllowance;
+  console.log(
+    `Daily allowance set to: ${eurosFormatter.format(newAllowance)}`
+  );
+};
+
+Wallet.prototype.resetDailyAllowance = function () {
+  this._dayTotalWithdrawals = 0;
+};
+
+
 Wallet.prototype.reportBalance = function () {
   console.log(
     `Name: ${this._name}, balance: ${eurosFormatter.format(this._cash)}`
diff --git a/Week4/prep-exercises/2-game-of-life/Cell.js b/Week4/prep-exercises/2-game-of-life/Cell.js
index cac08da..0da4ea6 100644
--- a/Week4/prep-exercises/2-game-of-life/Cell.js
+++ b/Week4/prep-exercises/2-game-of-life/Cell.js
@@ -14,6 +14,12 @@ export default class Cell {
     this.y = y;
     this.alive = Math.random() > 0.5;
     this.nextAlive = false;
+    if (this.alive){
+      this.liveTime = 1;
+    } else {
+      this.liveTime = 0;
+    }
+    this.opacity = 0.25;
   }
 
   draw(context) {
@@ -26,9 +32,19 @@ export default class Cell {
       Cell.size
     );
 
+    if (this.liveTime === 1){
+      this.opacity = 0.25;
+    } else if (this.liveTime === 2){
+      this.opacity = 0.5;
+    } else if (this.liveTime === 3){
+      this.opacity = 0.75;
+    } else if (this.liveTime > 3){
+      this.opacity = 1;
+    } 
+
     if (this.alive) {
       // Draw living this inside background
-      context.fillStyle = `rgb(24, 215, 236)`;
+      context.fillStyle = `rgba(24, 215, 236, ${this.opacity})`;
       context.fillRect(
         this.x * Cell.size + 1,
         this.y * Cell.size + 1,
@@ -49,6 +65,12 @@ export default class Cell {
       // Living cell dies, dead cell remains dead
       this.nextAlive = false;
     }
+
+    if (this.alive){
+      this.liveTime ++ ;
+    } else {
+      this.liveTime = 0;
+    }
   }
 
   update() {
diff --git a/random.js b/random.js
new file mode 100644
index 0000000..cc58b9d
--- /dev/null
+++ b/random.js
@@ -0,0 +1,7 @@
+const basket2 = {
+    fruit: "banana",
+    printFruit:() => {
+        console.log(this.fruit);
+    }
+};
+basket2.printFruit(); // undefined
\ No newline at end of file
diff --git "a/\320\277\320\276\321\217\320\274\320\275\320\270\321\202\321\214 3.js" "b/\320\277\320\276\321\217\320\274\320\275\320\270\321\202\321\214 3.js"
new file mode 100644
index 0000000..19f49eb
--- /dev/null
+++ "b/\320\277\320\276\321\217\320\274\320\275\320\270\321\202\321\214 3.js"	
@@ -0,0 +1,3 @@
+const banaan = {ding: true, nietDing: false};
+console.log('dfdfdf' + banaan);
+console.log(`asdasd ${banaan}`)
\ No newline at end of file
diff --git "a/\320\277\320\276\321\217\321\201\320\275\320\270\321\202\321\214 1.js" "b/\320\277\320\276\321\217\321\201\320\275\320\270\321\202\321\214 1.js"
new file mode 100644
index 0000000..e1845a4
--- /dev/null
+++ "b/\320\277\320\276\321\217\321\201\320\275\320\270\321\202\321\214 1.js"	
@@ -0,0 +1,8 @@
+const basket2 = {
+    fruit: "banana",
+    printFruit:() => {
+        console.log(this.fruit);
+    }
+};
+basket2.printFruit(); // undefined
+
diff --git "a/\320\277\320\276\321\217\321\201\320\275\320\270\321\202\321\214 2.js" "b/\320\277\320\276\321\217\321\201\320\275\320\270\321\202\321\214 2.js"
new file mode 100644
index 0000000..1bd1a9e
--- /dev/null
+++ "b/\320\277\320\276\321\217\321\201\320\275\320\270\321\202\321\214 2.js"	
@@ -0,0 +1,6 @@
+function showFruit(){
+    console.log(this.fruit);
+}
+showFruit(); // undefined, because this is window object and there is no fruit property
+const orangeBasket = {fruit: "orange"};
+showFruit.call(orangeBasket); // "orange"
\ No newline at end of file
diff --git "a/\320\277\320\276\321\217\321\201\320\275\320\270\321\202\321\214\321\201.js" "b/\320\277\320\276\321\217\321\201\320\275\320\270\321\202\321\214\321\201.js"
new file mode 100644
index 0000000..b8cd9a6
--- /dev/null
+++ "b/\320\277\320\276\321\217\321\201\320\275\320\270\321\202\321\214\321\201.js"
@@ -0,0 +1,4 @@
+const y = {hair: "black", eyes: "brown"};
+const {hair, eyes} = y;
+console.log(hair, eyes); // "black"
+const {hair: h, eyes: e} = y;
\ No newline at end of file