Added Advanced Javascript programs

Program's_Contributed_By_Contributors/JavaScript_Programs/async-await.js

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+function makeRequest(location) {
+  return new Promise((resolve, reject) => {
+    console.log(`Making Request to ${location}`);
+
+    if (location === "Google") {
+      resolve("Google says Hi..");
+    } else {
+      reject("We only talk with Google");
+    }
+  });
+}
+
+function processRequest(response) {
+  return new Promise((resolve, reject) => {
+    console.log("processing response");
+    resolve(`Extra information ${response}`);
+  });
+}
+
+// makeRequest("Google")
+//   .then((response) => {
+//     console.log("Response has been recieved");
+//     return processRequest(response);
+//   })
+//   .then((processResponse) => {
+//     console.log(processResponse);
+//   })
+//   .catch((err) => {
+//     console.log(err);
+//   });
+
+async function doWork() {
+  try {
+    const response = await makeRequest("Facebook");
+    console.log("response recieved");
+    const processedResponse = await processRequest(response);
+    console.log(processedResponse);
+  } catch (err) {
+    console.log(err);
+  }
+}
+
+doWork();

Program's_Contributed_By_Contributors/JavaScript_Programs/conditionals.js

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+//if statements
+
+const x = "20";
+
+if (x === 20) {
+  console.log(true);
+} else {
+  console.log(false);
+}
+
+//ternary operators
+
+const y = 20;
+
+const color = y <= 20 ? "red" : "blue";
+console.log(color);
+
+//switch case statements
+
+switch (color) {
+  case "red":
+    console.log("color is red");
+    break;
+  case "blue":
+    console.log("colore is blue");
+    break;
+  default:
+    console.log("color is not red or blue");
+    break;
+}
+
+//functions
+
+function addNumber(num1, num2) {
+  console.log(num1 + num2);
+}
+
+addNumber(10, 12);
+
+//fat arrow function
+
+const addNumbers = (num3, num4) => {
+  console.log(num3 + num4);
+};
+addNumbers(100, 89);
+
+//object oriented programming
+
+function Person(firstName, lastName, dob) {
+  this.firstName = firstName;
+  this.lastName = lastName;
+  this.dob = new Date(dob);
+}
+
+// Instantiate object
+const Person1 = new Person("Akash", "kumar", "2-2-2001");
+
+console.log(Person1);
+// alert(Person1.firstName + " " + Person1.lastName + " " + Person1.dob);
+
+//classes
+
+class Person_Class {
+  constructor(firstName, lastName, dob) {
+    this.firstName = firstName;
+    this.lastName = lastName;
+    this.dob = new Date(dob);
+  }
+  getBirthYear() {
+    return this.dob.getFullYear();
+  }
+
+  getFullName() {
+    return `${this.firstName} ${this.lastName}`;
+  }
+}
+
+const Person_Class_1 = new Person_Class("Harry", "Potter", "4-2-1992");
+
+console.log(Person_Class_1.getFullName());
+console.log(Person_Class_1);

Program's_Contributed_By_Contributors/JavaScript_Programs/higherOrderFunctions.js

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+const companies = [
+  { name: "company one", category: "Finanace", start: 1981, end: 2003 },
+  { name: "company two", category: "Retail", start: 1989, end: 2043 },
+  { name: "company three", category: "Auto", start: 1451, end: 2053 },
+  { name: "company four", category: "Crypto", start: 1681, end: 2603 },
+  { name: "company five", category: "Factories", start: 1933, end: 2503 },
+  { name: "company six", category: "Machines", start: 1931, end: 2203 },
+  { name: "company seven", category: "Food", start: 1541, end: 2033 },
+  { name: "company eight", category: "Clothes", start: 1581, end: 2093 },
+  { name: "company nine", category: "Agritech", start: 1781, end: 2083 },
+  { name: "company ten", category: "Cyber-security", start: 1581, end: 2883 },
+  { name: "company eleven", category: "Clocks", start: 1986, end: 2803 },
+  { name: "company twelve", category: "Oil", start: 1951, end: 2088 },
+  { name: "company thirten", category: "Natural Gas", start: 1881, end: 2803 },
+  { name: "company fourteen", category: "Retail", start: 1901, end: 2603 },
+  { name: "company fifteen", category: "Food", start: 1281, end: 2303 },
+];
+
+const ages = [22, 23, 44, 45, 66, 71, 34, 54, 65, 34, 56, 29, 78, 95, 21];
+
+//for loop
+
+// for (let i = 0; i < companies.length; i++) {
+//   console.log(companies[i]);
+// }
+
+//forEach loop
+
+// companies.forEach((company) => {
+//   console.log(company);
+// });
+
+// map function
+
+// companies.map((company) => {
+//   console.log(company);
+// });
+
+//filter method
+
+//1. age
+
+// const canDrink = ages.filter((age) => {
+//   if (age >= 40) {
+//     return true;
+//   }
+// });
+
+// console.log(canDrink);
+
+//2. companies
+
+// const retailCompanies = companies.filter((company) => {
+//   if (company.category === "Retail" || company.category === "Food") {
+//     return true;
+//   } else if (company.start >= 1500 && company.start <= 2093) {
+//     return true;
+//   }
+// });
+
+// console.log(retailCompanies);
+
+//map
+
+//create array  ofcompany names
+
+// const companyName = companies.map((company) => {
+//   return `${company.category} [${company.start} - ${company.end}]`;
+// });
+//  console.log(companyName);
+
+let students = [
+  { id: "001", name: "Anish", sports: "Cricket" },
+  { id: "002", name: "Smriti", sports: "Basketball" },
+  { id: "003", name: "Rahul", sports: "Cricket" },
+  { id: "004", name: "Bakul", sports: "Basketball" },
+  { id: "005", name: "Nikita", sports: "Hockey" },
+];
+
+let players = students
+  .filter((student) => {
+    return student.sports === "Cricket";
+  })
+  .map((student) => {
+    return student.name;
+  });
+
+console.log("Cricekt player is " + players);
+//The below code does the same thing except it iterates players function one more time and gives result in different lines.
+
+// players.map((player) => {
+//   console.log("Cricket player is " + player);
+// });
+
+//sort
+
+const sortCompanies = companies.sort((c1, c2) => {
+  if (c1.start < c2.start) {
+    return 1;
+  } else {
+    return -1;
+  }
+});
+
+console.log(sortCompanies);
+
+//sort ages
+
+const sortAges = ages.sort((a, b) => {
+  return b - a; //in decending order
+});
+console.log(sortAges);
+
+//reduce
+
+const ageSum = ages.reduce((total, age) => {
+  return total + age;
+}, 0);
+
+console.log(ageSum);

Program's_Contributed_By_Contributors/JavaScript_Programs/main.js

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+const names =
+  "Akash Kumar , Roshan kumar , Tarun singh , Harneet Kaur , Deepak , Abhi";
+
+const age = 20;
+
+console.log(names.split(", "));
+
+//Arrays
+
+const numbers = new Array(1, 2, 3, 3, 4, 4, 5, 5, 5, 5);
+
+console.log(numbers);
+
+const Names = ["Akash", "kumar", "sharma", 20, "student"];
+Names.push("Lovely professional university");
+Names.unshift("Mr.");
+
+console.log(Names);
+
+console.log(Names.indexOf("kumar"));
+
+console.log(Names[0] + " " + Names[1]);
+
+//Object literals
+
+const Person = {
+  firstName: "Akash",
+  middleName: "kumar",
+  lastName: "sharma",
+  age: 20,
+  hobbies: ["music", "football", "cricket", "programming", "movies"],
+  college: "Lovely proffessional university",
+  address: {
+    street: "Ih 131 jct mill thapar colony",
+    city: "Phagwara",
+    state: "Punjab",
+    country: "India",
+    pinCode: 144401,
+  },
+};
+
+Person.email = "[email protected]";
+console.log(Person);
+
+console.log(Person.address.pinCode);
+
+//making Todos
+
+const todos = [
+  { id: 1, text: "Learn Javascript", isComplete: true },
+  { id: 2, text: "Learn React", isComplete: false },
+  { id: 3, text: "Learn Node.js", isComplete: false },
+];
+
+const todoJSON = JSON.stringify(todos);
+
+console.log(todoJSON);
+
+//for Loop
+
+for (let i = 0; i < todos.length; i++) {
+  console.log(todos[i].text);
+}
+
+for (let todo of todos) {
+  console.log(todo.id, todo.text, todo.isComplete);
+}
+
+//higher order functions
+
+//1. for each
+todos.forEach((todo) => {
+  console.log(todo.text);
+});
+
+//2. map
+
+const todoText = todos.map((todo) => {
+  return todo.text;
+});
+
+console.log(todoText);
+
+//3. filter
+
+const todoCompleted = todos
+  .filter((todo) => {
+    return todo.isComplete === true;
+  })
+  .map((todo) => {
+    return todo.text;
+  });
+
+alert(todoCompleted);

Program's_Contributed_By_Contributors/JavaScript_Programs/promise.js

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+let p = new Promise((resolve, reject) => {
+  let a = 1 + 7;
+  if (a === 2) {
+    resolve("Hello world");
+  } else {
+    reject("Failed");
+  }
+});
+
+p.then((message) => {
+  console.log(message);
+}).catch((err) => {
+  console.log(err);
+});