app.js

//==== Chapter 1 , Task 1
//alert("Hello World")

//==== Chapter 1 , Task 2
//alert("Error ! Please Enter a valid Password")

//==== Chapter 1 , Task 3
//alert("Welcome to JS Land...\n Happy Coding")

//==== Chapter 1 , Task 4
//alert("Welcome to JS Land...")
//alert("Happy Coding")

//==== Chapter 1 , Task 5&6
{/* <input type="button" id="button" value="Button">

  button.onclick = function() {
    alert(' Hello...I can run JS through my Web Browser Console');
  };
 */}

//==== Chapter 1 , Task 7
{/*
    
      
          document.getElementById("demo").innerHTML = "Hello JavaScript!"; 
    
*/}







//==== Chapter 2 , Task 1
//var username


//==== Chapter 2 , Task 2
// var myName 
// myName="Muhmmad ANAS "


//==== Chapter 2 , Task 3
// var message
// message="Hello World"
// alert(message)

//==== Chapter 2 , Task 4
// var name 
// var age
// var course
// name="Jhone Doe"
// age="15 years old"
// course="Certified Mobile Application Development"
// alert(name)
// alert(age)
// alert(course)

//==== Chapter 2 , Task 5
// x="PIZZA\nPIZZ\nPIZ\nPI\nP"
// alert(x)

//==== Chapter 2 , Task 6
// var email="anassiddiqui"
// alert("My email address is "+" "+ email)

//==== Chapter 2 , Task 7
// var book="A smarter way to learn JavaScript"
// alert("I am trying to learn from the book "+book )

//==== Chapter 2 , Task 8
//Yayy! I can wrie HTML content through JavaScript


//==== Chapter 2 , Task 9
// var symbol="▬▬▬▬▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬▬▬▬"
// alert(symbol)


//==== Chapter 3 , Task 1
// var age = 18 
// alert("I am "+ age +" years old.")

//==== Chapter 3 , Task 2

// var visit = 1
// var numberofvisits = visit + 1
// alert("You Have visited this site "+numberofvisits+" times")
// visit = visit +  1

//==== Chapter 3 , Task 3
// var birthyear = 2001
// alert("My birth year is " + birthyear+ "\nData type of my declared variacle is number ")

//==== Chapter 3 , Task 4

// var  Visitorsname ,Producttitle,Quantity
// alert(Visitorsname +" ordered " + Quantity + " T-shirt(s) on XYZ Clothing store")












//==== Chapter 5 , Task 12
//No Solution



//=== chapter 6 task 1
// var a = 10;
// document.write("Result \n"  ); 
// document.write("the value of a is " , a  );

// document.write("---------------"   );

// document.write("the value of ++a is " , ++a  );
// document.write("now the value of a++ is " , a++  );

// document.write("the value of a++ is " , a++  );
// document.write("nowthe value of a++ is " , a++  );

// document.write("the value of --a is " , --a  );
// document.write("now the value of --a is " , --a  );

// document.write("the value of a-- is " , a--  );
// document.write("now the value of a-- is " , a--  );

//=== chapter 6 task 2
// var a=2 ;
// var b=1;
// var result = --a - --b + ++b + b--;

// document.write (result);

// document.write(--a);
// document.write(--a - --b);
// document.write(--a - --b + ++b);
// document.write(--a - --b + ++b + b--);

//=== chapter 6 task 3

//var name = prompt(" please enter your name");
//document.write("welcome "+ name );

//=== chapter 6 task 4,5

//var num = prompt(" please enter a number);
//var count ;
//for(count=0;count <10 ; count++ ){
//   document.write(num + " * " + num + " = " + num*num );
 //   document.write("<br />")
//}

//chapter 6-9 task 6,7
 
// var subject1=prompt("enter the name of subject 1 ");
// var subject2=prompt("enter the name of subject 2 ");
// var subject3=prompt("enter the name of subject 3 ");
// var totalmark=100;

// var subject1marks=prompt("enter the marks of subject 1 ");
// var subject2marks=prompt("enter the marks of subject 2 ");
// var subject3marks=prompt("enter the marks of subject 3 ");

// document.write("Subject  total  obtained percentage ");
// document.write("<br>");
// document.write(subject1 + "  " + totalmark + "  " + subject1marks  + "  "+ (subject1marks / totalmark )* 100);
// document.write("<br>");
// document.write(subject2 + "  " + totalmark + "  " + subject2marks  + "  "+ (subject2marks / totalmark )* 100);
// document.write("<br>");
// document.write(subject3 + "  " + totalmark + "  " + subject3marks  + "  "+ (subject3marks / totalmark )* 100);

//chapter 9-10 task 1
// var city = prompt(" please enter city name");

// if (city.toLowerCase === "karachi");
// {
//     document.write( "Welcome to city of lights");
// }
//chapter 9-10 task 2

// var gender = prompt(" please enter your gender ");
// if (gender.toLowerCase === "male")
// {
//  document.write( "good morning sir ");
// }
// else  if (gender.toLowerCase === "female" )
// {
//     document.write( "good morning maam ");
// }

//chapter 9-10 task 3

// var color = prompt(" please enter color");

//  if (color == "red")
//  {
//      document.write( "must stop");
//  }
// else if (color == "yellow")
// {
//     document.write( "Ready to move    ");
// }

// else if (color == "green")
// {
//     document.write( "Move now");
// }

// var color = prompt(" please enter color");

//chapter 9-10 task 4
// var fuel = prompt(" please enter remaining feul in liters");
//  if (fuel < "0.25")
//  {
//      document.write( "Please refill the fuel in your car");
// }else document.write("Continue")


//chapter 9-10 task 5
// a) Displayed 
// b) Not Displayed
// c) Displayed
// d) Not Displayed
// e) Displayed
// f) Displayed

// var TMark= prompt("Plese Enter Your Total Marks");
// var Mark= prompt("Plese Enter Your Marks Obtained");

// Marks= Mark*100/TMark


//   if (Marks > 79)
//   {
//       document.write( "MarkSheet\n"+"\n  Total Marks :"+TMark+ " \n  Marks Obtained: "+Mark+ " Percentage: " + Marks + "  Grade:A-one");
//  }else if  (Marks > 69)
//  {
//      document.write("MarkSheet\n"+"\n  Total Marks :"+TMark+ " \n  Marks Obtained: "+Mark+ " Percentage: " + Marks + "  Grade:A");
// }else   if (Marks > 59)
// {
//     document.write("MarkSheet\n"+"\n  Total Marks :"+TMark+ " \n  Marks Obtained: "+Mark+ " Percentage: " + Marks + "  Grade:B");
// }else   if (Marks < 60 )
// {
//     document.write( "MarkSheet\n"+"\n  Total Marks :"+TMark+ " \n  Marks Obtained: "+Mark+ " Percentage: " + Marks +"  Grade:Fail");
// }

//chapter 11-13  task 2

// var n= prompt("Plese Enter number 1");
// var m= prompt("Plese Enter number 2");

// if(n>m){
//     document.write(n + "is larger");
// }
// else if(n<m){
//     document.write(m + "is larger");
// }
// else{
//     document.write("equal");
// }



//chapter 11-13  task 3

// var n= prompt("Plese Enter number 1");


//  if(n>0){
//      document.write(n + "is psitive");
//  }
//  else if(n<0){
//      document.write(m + "is negative");
//  }
//  else{
//     document.write("zero");
//  }

//chapter 11-13  task 4
//  var n= prompt("Plese Enter letter");


//  if(n== "u" ||n== "a" ||n== "e" ||n== "i" ||n== "o"  ){
//      document.write("true");
//  }
// else{
//     document.write("false");
// }

//chapter 11-13  task 6
// var hour = 13;
// if (hour < 18) {
//     greeting = "Good day";
// }
// else{
//     greeting = "Good evening";
// }

//chapter 13-16 task 1-9
// var  name= [];
// var cars = [ "Volvo", "BMW"];
// var n = [1,2,4,3];
// var x = [true,false];
// var fas = [1,"Saab", 2,"Volvo", "BMW"];
// var qualification=["SSC", "HSC", "BCS",
//     "BS", "BCOM", "MS"," M. Phil," "PhD"];
//     for(var c=0;c<8;c++){
//         document.write(c+ ")  "qualification[c] );
//         document.write("<br>");
//     }

// //chapter 17-20 task 1-3
// var activities = [];
// var num =   [0, 1,2,3],
// [1, 0,1,2],
// [2,1,0,1],
// ];


//chapter 17-20 task 3
// var c =0;
// for(c=1;c<=10 ;c++){
//     document.write(c);
//     document.write("<br>");
// }

//chapter 17-20 task 4

//var num = prompt(" please enter a number);
//var x = prompt(" please enterlenth of table);
//var count ;
//for(count=1;count <=x ; count++ ){
//   document.write(num + " * " + count + " = " + num*count  );
 //   document.write("<br />")
//}


//chapter 17-20 task 5
// fruits = [“apple”, “banana”, “mango”, “orange”,
//     “strawberry”]