script3ch14-16.js

// task1
// let student = new Array;
// let student2 = new Object;

// student = ['Fruits', 'Apples', 'Oranges'];
// student = [1,2,3,4,5,6,7,8];
// student = ['true' ,'false'];
// student = ['Vegetables' , 'Fruits' ,3,5,666,86,2,'Hello']
// student = ['SSC'+'<br>'+'HSC'+'<br>'+'BSC'+'<br>'+'BS'+'<br>'+'BCOM'+'<br>'+'MS'+'<br>'+ 'MPHILL'+'<br>'+'PHD']
// document.write(student);




// task8
// student = ['ali' , 'ateeb' , 'israr'];
// studentScore = ['391' , '326' , '384'];
// totalscor = 500;
// perc  = [studentScore[0]/totalscor * 100];
// perc1 = [studentScore[1]/totalscor * 100];
// perc2 = [studentScore[2]/totalscor * 100];

// document.write('Score of '+student[0] + " is " + studentScore[0] + "  Percentage is " + perc);
// document.write('<br>'+'Score of '+student[1] + " is " + studentScore[1] + "  Percentage is " + perc1);
// document.write('<br>'+'Score of '+student[2] + " is " + studentScore[2] + "  Percentage is " + perc2);



// task9
// let color = [' Red ',' Yellow']
// document.write(color + '<br>');
// let askcolor = prompt('COLOR add to the beginning');
// color.unshift(askcolor);
// document.write(color + ' , ' + '<br>');
// askcolor2 = prompt('add another color');
// askcolor3 = prompt('add another color plz');
// color.unshift(askcolor2 , askcolor3)
// document.write(' '+color+ '<br>');
// color.shift();
// document.write(' '+color+ '<br>');
// color.pop();
// document.write(' '+color+ '<br>');
// color.splice(2 ,0,'Brown');
// document.write(' '+color+ '<br>');
// color.splice(1, 2);
// document.write(' '+color+ '<br>');


// task10
// let array = [320,120,11,20,789,1021];
// document.write(array.sort(function(a, b){return a-b}));


// task11
// let cities = ['karachi' ,'lahore' ,' Islamabad' , ' Quetta' ,' Peshawar'];
// document.write(cities+ '<br>');
// let selectedCities = '';
// cities.splice( 0,2);
// cities.splice( 2,1);
// document.write(cities)


// task12
// var arr = ['This', 'is', 'my', 'cat'];
// document.write(arr + '<br>');
// var sting = arr.join(' ');
// document.write(sting);



// task13
// let array = [];
// array.push('Keyboard');
// document.write(array + '<br>');
// array.push('Mouse');
// document.write(array + '<br>'); 
// array.push('Monitor');
// document.write(array + '<br>');
// array.push('LED');
// document.write(array + '<br>');




// task14
// let array = [];
// array.unshift('Keyboard');
// document.write(array + '<br>');
// array.unshift('Mouse');
// document.write(array + '<br>'); 
// array.unshift('Monitor');
// document.write(array + '<br>');
// array.unshift('LED');
// document.write(array + '<br>');



// task15
// var select = document.getElementById("selectNumber"); 
// var options = ["Apple", "Samsung", "Sony", "Nokia", "Motrola"]; 
// for(var i = 0; i < options.length; i++) {
//     var opt = options[i];
//     var el = document.createElement("option");
//     el.text = opt;
//     select.add(el);
// }