index.ts

//Exercise #1
{
  console.log("                                                      ");
  console.log(
    "\x1b[32m 2. Personal Message: Store a person’s name in a variable, and print a message to that person. \x1b[0m"
  );
  console.log("                                                      ");

  let name: string = "Javad";

  console.log(`${name} how are you doing today `);

  console.log("                                                      ");
}
//Exercise #2
{
  console.log(
    "\x1b[32m 3. Name Cases: Store a person’s name in a variable, and then print that person’s name in lowercase, uppercase, and titlecase.\x1b[0m"
  );
  console.log("                                                      ");

  let name: string = "Javad";

  console.log(name.toLowerCase());

  console.log(name.toUpperCase());

  console.log(name.replace(/\b\w/g, (letter) => letter.toUpperCase()));

  console.log("                                                      ");
}
//Exercise #3
{
  console.log(
    "\x1b[32m 4. Famous Quote: Find a quote from a famous person you admire. Print the quote and the name of its author.\x1b[0m"
  );
  console.log("                                                      ");

  let quote: string =
    "Muhammad Ali once said, “If my mind can conceive it, if my heart can believe it--then I can achieve it.”";

  console.log(quote);

  console.log("                                                      ");
}
//Exercise #4
{
  console.log("                                                      ");
  console.log(
    "\x1b[32m 5. Famous Quote 2: Repeat Exercise 4, but this time store the famous person’s name in a variable called famous_person.\x1b[0m"
  );
  console.log("                                                      ");

  let famous_person: string = "Muhammad Ali";

  let quote: string = "Don't count the days. Make the days count.";

  let message: string = `${famous_person} once said, “${quote}”`;

  console.log(message);

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m  6. Stripping Names: Store a person’s name, and include some whitespace characters at the beginning and end of the name. \x1b[0m"
  );
  console.log("                                                      ");

  let name: string = "\t\n  Ali Javad Ahmad   \n\t";

  console.log(name);

  let strippedName: string = name.trim();

  console.log(strippedName);

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m  7. Number Eight: Write addition, subtraction, multiplication, and division operations that each result in the number 8. Be sure to enclose your operations in print statements to see the results.  \x1b[0m"
  );
  console.log("                                                      ");

  let addition: number = 4 + 4;
  let subtraction: number = 10 - 2;
  let multiplication: number = 2 * 4;
  let division: number = 16 / 2;

  console.log(addition);
  console.log(subtraction);
  console.log(multiplication);
  console.log(division);

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m  8. Your output should simply be four lines with the number 8 appearing once on each line. \x1b[0m"
  );
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m  9. Favorite Number: Store your favorite number in a variable. Then, using that variable, create a message that reveals your favorite number. Print that message. \x1b[0m"
  );
  console.log("                                                      ");

  let favNumb: number = 92;

  console.log("my favorite number is", favNumb);

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m 10. Adding Comments: Choose two of the programs you’ve written, and add at least one comment to each. \x1b[0m"
  );
  console.log("                                                      ");

  let guestList = ["onion", "potato", "carrot"];

  function splice(stateOfItem: any, itemName: any) {
    if (stateOfItem == "add") {
      console.log(`added ${itemName}`);
      var itemIndexOf: number = guestList.length;
      guestList.splice(itemIndexOf, 0, itemName);
    } else if (stateOfItem == "delete") {
      var itemIndexOf: number = guestList.indexOf(itemName);
      console.log(`deleted ${itemName}`);
      guestList.splice(itemIndexOf, 1);
    } else if (stateOfItem == "index") {
      var itemIndexOf: number = guestList.indexOf(itemName);
      console.log(`Index of ${itemName} is at ${itemIndexOf}`);
    } else if (stateOfItem == "total" && itemName == "index") {
      console.log(`Length of Array is ${guestList.length}`);
    }

    return guestList;
  }
  //use this splice function on the Array to  add or delete
  console.log(splice("add", "milk"));

  console.log(splice("delete", "carrot"));

  console.log(splice("add", "tea"));

  //use this splice function on the Array to  see the index of the item or Total index
  console.log(splice("index", "onion"));

  console.log(splice("total", "index"));

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m  11. Names: Store the names of a few of your friends in a array called names. Print each person’s name by accessing each element in the list, one at a time. \x1b[0m"
  );
  console.log("                                                      ");

  const names: string[] = ["Dymitri", "glovkin", "Putin", "Vlad"];

  console.log(names[0]);
  console.log(names[1]);
  console.log(names[2]);
  console.log(names[3]);

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m 12. Greetings:  \x1b[0m");
  console.log("                                                      ");

  const names: string[] = ["Dymitri", "Glovkin", "Putin", "Vlad"];

  console.log("whats up", names[0]);
  console.log("how you doing", names[1]);
  console.log("Hello", names[2]);
  console.log("Privyet", names[3]);

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m  13. Your Own Array: Think of your favorite mode of transportation, such as a motorcycle or a car, and make a list that stores several examples. \x1b[0m"
  );
  console.log("                                                      ");

  const motorcycle: string[] = [
    "Honda 70",
    "Suzuki 110",
    "Yamaha 125",
    "Ktm 200",
  ];

  console.log(`i have a ${motorcycle[0]}`);
  console.log(`i also have a ${motorcycle[1]}`);
  console.log(`i would like to own a ${motorcycle[2]}`);
  console.log(`and a ${motorcycle[3]} would be Great`);
  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m  14. Guest List: If you could invite anyone, \x1b[0m");
  console.log("                                                      ");

  const names: string[] = ["Quaid e Azam", "Allama Iqbal", "General Zia"];

  console.log(`Sir, ${names[0]} You are invited to my Eid BBQ Dinner`);
  console.log(`Sir, ${names[1]} You are invited to my Eid BBQ Dinner`);
  console.log(`Sir, ${names[2]} You are invited to my Eid BBQ Dinner`);

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m  15. Changing Guest List: You just heard that one of your guests can’t make the dinner, so you need to send out a new set of invitations. \x1b[0m"
  );
  console.log("                                                      ");

  const names: string[] = [
    "Quaid e Azam",
    "Allama Iqbal",
    "General Zia",
    "Zulfikar Ali Bhutto",
  ];

  console.log(`Sir, ${names[0]} You are invited to my Eid BBQ Dinner`);
  console.log(`Sir, ${names[1]} You are invited to my Eid BBQ Dinner`);
  console.log(`Sir, ${names[2]} You are invited to my Eid BBQ Dinner`);
  console.log(`Sir, ${names[2]} will not be able to make it to the Dinner`);
  console.log(`Sir, ${names[3]} You are invited to my Eid BBQ Dinner`);

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m 14, 15, 16, 17 and 19 \x1b[0m");
  console.log("                                                      ");

  let guestList: string[] = ["Quaid e Azam", "Allama Iqbal", "General Zia"];

  function splice(stateOfItem: any, itemName: any) {
    if (stateOfItem == "add") {
      console.log(`added ${itemName}`);
      var itemIndexOf: number = guestList.length;
      guestList.splice(itemIndexOf, 0, itemName);
    } else if (stateOfItem == "delete") {
      var itemIndexOf: number = guestList.indexOf(itemName);
      console.log(`deleted ${itemName}`);
      guestList.splice(itemIndexOf, 1);
    } else if (stateOfItem == "index") {
      var itemIndexOf: number = guestList.indexOf(itemName);
      console.log(`Index of ${itemName} is at ${itemIndexOf}`);
    } else if (stateOfItem == "total" && itemName == "index") {
      console.log(`Length of Array is ${guestList.length}`);
    }

    return guestList;
  }

  function inviter(list: any) {
    for (let i = 0; i <= list.length; i++) {
      console.log(`Invitation sent to ${list[i]}`);
    }
    console.log(`Number of people invited is ${list.length}`);
  }

  console.log(inviter(guestList));

  console.log(splice("delete", "General Zia"));

  console.log(splice("add", "Zulfikar Ali Bhutto"));

  console.log(inviter(guestList));

  console.log(splice("add", "Imran khan"));
  console.log(splice("add", "Ayub khan"));
  console.log(splice("add", "Liaquat Ali Khan"));

  console.log(inviter(guestList));

  console.log(splice("delete", "Liaquat Ali Khan"));
  console.log(splice("delete", "Ayub khan"));
  console.log(splice("delete", "Imran khan"));
  console.log(splice("delete", "Zulfikar Ali Bhutto"));

  console.log(inviter(guestList));

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m  18. Seeing the World: Think of at least five places in the world you’d like to visit. \x1b[0m"
  );
  console.log("                                                      ");

  // • Store the locations in a array. Make sure the array is not in alphabetical order.

  let worldToSee: string[] = [
    "islamabad",
    "Berlin",
    "Moscow",
    "New york",
    "Tokyo",
  ];

  //• Print your array in its original order.
  console.log(worldToSee);
  //• Print your array in alphabetical order without modifying the actual list.
  console.log(worldToSee.sort);
  //• Show that your array is still in its original order by printing it.
  console.log(worldToSee);
  //• Print your array in reverse alphabetical order without changing the order of the original list.
  console.log(worldToSee.reverse);
  //• Show that your array is still in its original order by printing it again.
  console.log(worldToSee);
  //• Reverse the order of your list. Print the array to show that its
  //order has changed.
  console.log(worldToSee.reverse);
  //• Reverse the order of your list again. Print the list to show it’s back to its original order.
  console.log(worldToSee);
  //• Sort your array so it’s stored in alphabetical order. Print the array to show that its order has been changed.
  console.log(worldToSee.sort);
  //• Sort to change your array so it’s stored in reverse alphabetical order. Print the list to show that its order has changed.

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m  20. Think of something you could store in a array. For example, you could make a list of mountains, rivers, countries, cities, languages, or anything \x1b[0m"
  );
  console.log("                                                      ");
  let cities: string[] = ["islamabad", "Berlin", "Moscow", "New york", "Tokyo"];

  console.log("here is a list of Cities", cities);

  console.log("                                                      ");
}
//Exercise #5
{
  console.log(
    "\x1b[32m  21. They think of something you could store in a TypeScript Object. \x1b[0m"
  );
  console.log("                                                      ");

  interface country {
    country: string;
    city: string;
    code: number;
    language: string;
  }

  //21
  const Japan: country = {
    country: "Japan",
    city: "Tokyo",
    code: 81,
    language: "Japanese",
  };
  console.log("here is a Detail of Country", Japan);

  console.log("                                                      ");
}
//Exercise #22
{
  console.log(
    "\x1b[32m  22. Intentional Error: If you haven’t received an array index error in one of your programs  \x1b[0m"
  );
  console.log("                                                      ");

  let worldToSee: string[] = [
    "islamabad",
    "Berlin",
    "Moscow",
    "New york",
    "Tokyo",
  ];

  console.log(worldToSee[5]);

  console.log("                                                      ");
}
//Exercise #23
{
  console.log(
    "\x1b[32m  23. Conditional Tests: Write a series of conditional tests.  \x1b[0m"
  );
  console.log("                                                      ");

  let car = "subaru";

  console.log("Is car == 'subaru'? I predict True.");
  console.log(car == "subaru");

  console.log("Is car == 'audi'? I predict False.");
  console.log(car == "audi");

  console.log("Is car != 'bmw'? I predict True.");
  console.log(car != "bmw");

  console.log("Is car != 'subaru'? I predict False.");
  console.log(car != "subaru");

  console.log("Is car === 'Subaru'? I predict False.");
  console.log(car === "Subaru");

  console.log("Is car !== 'Subaru'? I predict True.");
  console.log(car !== "Subaru");

  console.log("Is car.toLowerCase() == 'subaru'? I predict True.");
  console.log(car.toLowerCase() == "subaru");

  console.log("Is car.toUpperCase() == 'SUBARU'? I predict True.");
  console.log(car.toUpperCase() == "SUBARU");

  console.log("Is car.length > 3? I predict True.");
  console.log(car.length > 3);

  console.log("Is car.length < 3? I predict False.");
  console.log(car.length < 3);

  console.log("                                                      ");
}
//Exercise #24
{
  console.log("\x1b[32m 24. More Conditional Tests  \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #25
{
  console.log(
    "\x1b[32m  25. Alien Colors #1: Imagine an alien was just shot down in a game. Create a variable called alien_color and assign it a value of 'green', 'yellow', or 'red'. \x1b[0m"
  );
  console.log("                                                      ");
  var alien_color: string = "red";
  if (alien_color == "green") {
    console.log("The player just earned 5 points.");
  } else {
    console.log(`alien color is ${alien_color} no points `);
  }

  console.log("                                                      ");
}
//Exercise #26
{
  console.log(
    "\x1b[32m  26. Alien Colors #2: Choose a color for an alien as you did in Exercise 25, and write an if-else chain.  \x1b[0m"
  );
  console.log("                                                      ");

  let alien_color = "yellow";

  if (alien_color == "green") {
    console.log("The player earned 5 points.");
  } else if (alien_color == "yellow") {
    console.log("The player earned 10 points.");
  } else if (alien_color == "red") {
    console.log("The player earned 15 points.");
  }

  console.log("                                                      ");
}
//Exercise #27
{
  console.log(
    "\x1b[32m  27. Alien Colors #3: Turn your if-else chain from Exercise 5-4 into an if-else chain. \x1b[0m"
  );
  console.log("                                                      ");

  let alien_color = "Red";

  if (alien_color == "green") {
    console.log("The player earned 5 points.");
  } else if (alien_color == "yellow") {
    console.log("The player earned 10 points.");
  } else {
    console.log("The player earned 15 points.");
  }

  console.log("                                                      ");
}
//Exercise #28
{
  console.log(
    "\x1b[32m 28  Stages of Life: Write an if-else chain that determines a person’s stage of life. Set a value for the variable age, and then: \x1b[0m"
  );
  console.log("                                                      ");

  let age = 17;

  if (age < 2) {
    console.log("The person is a baby.");
  } else if (age >= 2 && age < 4) {
    console.log("The person is a toddler.");
  } else if (age >= 4 && age < 13) {
    console.log("The person is a kid.");
  } else if (age >= 13 && age < 20) {
    console.log("The person is a teenager.");
  } else if (age >= 20 && age < 65) {
    console.log("The person is an adult.");
  } else if (age >= 65) {
    console.log("The person is an elder.");
  }

  console.log("                                                      ");
}
//Exercise #29
{
  console.log(
    "\x1b[32m  29. Favorite Fruit: Make a array of your favorite fruits, and then write a series of independent if statements that check for certain fruits in your array. \x1b[0m"
  );
  console.log("                                                      ");

  let favorite_fruits: string[] = ["grape", "orange", "blueberry"];

  if (favorite_fruits.includes("grape")) {
    console.log("Grapes are delicious");
  }

  if (favorite_fruits.includes("orange")) {
    console.log("You really like oranges!");
  }

  if (favorite_fruits.includes("strawberry")) {
    console.log("You really like strawberries!");
  }
  if (favorite_fruits.includes("mango")) {
    console.log("You really like mango!");
  }

  console.log("                                                      ");
}
//Exercise #30
{
  console.log(
    "\x1b[32m  30. Hello Admin: Make a array of five or more usernames, including the name 'admin'. Imagine you are writing code that will print a greeting to each user \x1b[0m"
  );
  console.log("                                                      ");

  let userNames1: string[] = ["admin", "Vlad", "Putin", "Dymitri", "Niko"];

  for (let username of userNames1) {
    if (username == "admin") {
      console.log("Hello admin, would you like to see a status report?");
    } else {
      console.log(`Hello ${username}, thank you for logging in again.`);
    }
  }
  console.log("                                                      ");
}
//Exercise #31
{
  console.log(
    "\x1b[32m  31. No Users: Add an if test to Exercise 28 to make sure the list of users is not empty. \x1b[0m"
  );
  console.log("                                                      ");

  let usernames: string[] = [];

  if (usernames.length == 0) {
    console.log("We need to find some users!");
  }

  console.log("                                                      ");
}
//Exercise #32
{
  console.log(
    "\x1b[32m  32. Checking Usernames: Do the following to create a program that simulates how websites ensure that everyone has a unique username. \x1b[0m"
  );
  console.log("                                                      ");

  let userNames: string[] = ["admin", "Vlad", "Putin", "Dymitri", "Niko"];

  function addUser(user: string) {
    if (userNames.includes(user)) {
      console.log(`${user} Already Exist please try something else `);
    } else {
      userNames.push(user);
      console.log(`${user} has been added`);
    }
    return userNames;
  }

  console.log(addUser("admin"));

  console.log(addUser("Misha"));

  console.log("                                                      ");
}
//Exercise #33
{
  console.log(
    "\x1b[32m  33. Ordinal Numbers: Ordinal numbers indicate their position in a array, such as 1st or 2nd. Most ordinal numbers end in th, except 1, 2, and 3. \x1b[0m"
  );
  console.log("                                                      ");

  let numbers: number[] = [1, 2, 3, 4, 5, 6, 7, 8, 9];

  for (let number of numbers) {
    if (number == 1) {
      console.log("1st");
    } else if (number == 2) {
      console.log("2nd");
    } else if (number == 3) {
      console.log("3rd");
    } else {
      console.log(`${number}th`);
    }
  }

  console.log("                                                      ");
}
//Exercise #34
{
  console.log(
    "\x1b[32m  34. Pizzas: Think of at least three kinds of your favorite pizza. Store these pizza names in a array, and then use a for loop to print the name of each pizza. \x1b[0m"
  );
  console.log("                                                      ");

  let pizzas: string[] = ["pepperoni", "Fujita", "Tika"];

  for (let pizza of pizzas) {
    console.log(`I like ${pizza} pizza.`);
  }

  console.log("I really love pizza!");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m   \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m   \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m   \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m   \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m   \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m   \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m   \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m   \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m   \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}
//Exercise #5
{
  console.log("\x1b[32m   \x1b[0m");
  console.log("                                                      ");

  console.log("                                                      ");
}