Practical No.
Aim: Develop JavaScript to implement Array functionalities.
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var a1= new Array();
document.write("Length of a1 array is :" + a1.length);
var a2= new Array(3);
document.write("<br>Length of a2 array is :" + a2.length);
var a3 = new Array(5, 4, 3, 2, 1, "testing, testing");
document.write("<br>Length of a3 array is:" + a3.length);
</script>
</body>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var items = new Array("One", "Two", "Three");
document.write("Length of array is :" + items.length);
</script>
</body>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var items = new Array(3);
items[0] = "One";
items[1] = "Two";
items[2] = "Three";
document.write(items[0]);
document.write("<br>"+ items[1]);
document.write("<br>"+items[2]);
</script>
</body>
</html>
<html>
<head>
<script>
var scripts=new Array();
scripts[0]="PHP";
scripts[1]= "ASP";
scripts[2] = "JavaScript";
scripts[3] = "HTML";
for (i=0;i<scripts.length;i++)
document.write(scripts[i] + "<br>");
</script>
</head> </html>
<html>
<head>
<script>
var arr = new Array();
for (i=0; i< 5; i++){
arr[i] = i;
for (i = 0; i< 5; i++){
document.write("element = "+ arr[i] +"<br>");
</script>
</head>
</html>
<html>
<head>
<script>
var arr = new Array("one", "two", 30);
document.write("Length of array=" + arr.length +"<br>");
for (i=0; i< 3; i++)
document.write("element = "+ arr[1] +"<br>");
</script>
</head>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var num = new Array(3); for (i = 0; 1 < 3; i++) num[i] = new Array(3);
num[0][0] = 1;
num[0][1] = 2;
num[0][2] = 3;
num[1][0] = 4;
num[1][1] = 5;
num[1][2] = 6;
num[2][0] = 7;
num[2][1] = 8;
num[2][2] = 9;
for (var i = 0; i < num.length; i++)
for (var j=0; j < num.length; j++)
document.write(num[i][j] + "<br>");
</script>
</body>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var items = new Array(3);
items[0] = "One";
items[1] = "Two";
items[2] = "Three";
items[3] = "Four";
items.push("Five");
items.push("Six", "Seven");
items.unshift("Zero");
items[items.length]="Eight";
items[items.length]="Nine";
for (i=0;i<items.length;i++)
document.write(items[i] + " ");
</script>
</body>
</html>
<html>
<body>
<script>
var products = new Array();
products[0] = 'Soap ';
products[1] = 'Water';
products[2] = 'Pizza';
products[3] = 'Fan';
products.sort();
for (var i = 0; i < products.length; i++)
document.write(products[i] + '<br>');
</script></body>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var arr1 = [ "Red", "RED", "red", "Green", "Blue"];
var arr2 = [1, 20, 3, 45, 44, 0.5];
document.write("Before sorting arr1="+ arr1);
document.write("<br>After sorting arr1="+ arr1.sort());
document.write("<br>Before sorting arr2="+ arr2);
document.write("<br>After sorting arr2="+ arr2.sort(function(a,b){return a-b}));
</script>
</body>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var arr1 = [ "Red", "RED", "red", "Green", "Blue"];
var arr2= [1, 20, 3, 45, 44, 0.5];
arr1.sort();
document.write("Descending Order : "+arr1.reverse()+"<br>");
document.write("Descending Order : "+arr2.sort(function(a,b){return b-a}));
</script>
</body>
</html>
<html>
<body>
<script>
var fruits = ["Banana", "Watermelon", "Chikoo", "Mango", "Orange", "Apple"];
fruits.sort();
document.write(fruits+"<br>");
fruits.reverse();
document.write(fruits+"<br>");
</script>
</body>
</html>
<html>
<body>
<script>
var CO_Subject = ["PHP", "CSS", "Java"];
var Math_Subject= ["Applied Math", "Elements of Maths"];
var subjects = CO_Subject.concat(Math_Subject);
document.write(subjects);
</script>
</body>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var items = new Array(3);
items[0] = "One";
items[1] = "Two";
items [2]="Three";
var s1=items.join()
document.write(s1 + "<br>");
var s2=items.join('-')
document.write(s2 + "<br>");
var s3=items.concat()
document.write(s3 + "<br>");
var num = new Array(3);
num[0] = "Four";
num[1]="Five";
num[2] = "Six";
var s4=items.concat(num);
document.write(s4 + "<br>");
</script>
</body>
</html>
<html>
<body>
<script>
var products = new Array();
products[0] = 'Car ';
products[1] = 'Water';
products[2] = 'Soap';
products[3] = 'Pizza';
var str = products.concat();
document.write(str);
document.write('<br>');
var str = products.join(' ');
document.write(str);
</script>
</body>
</html>
<html>
<head>
<script>
var arr = new Array(1,2,3,4,5,6,7,8,9,10);
document.write("<br>After join method "+ arr.join("-"))
var newarr=arr.slice(1,3)
document.write("<br>After slice method "+ newarr)
</script>
</head>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var items=new Array(3);
items[0] = "One";
items[1] = "Two";
items[2]="Three";
items.shift();
for (i=0;i<items.length;i++)
document.write(items[i] + " ");
</script>
</body>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var items = new Array(3);
items[0] = "One";
items[1] = "Two";
items[2] = "Three";
items.pop();
for (i=0;i<items.length;i++)
document.write(items[i] + " ");
</script>
</body>
</html>
<html>
<body>
<script>
var fruits=["Banana","Watermelon","Chikoo","Mango","Orange","Apple"];
document.write(fruits+"<br>");
fruits.splice(2,2, "Lemon", "Kiwi");
document.write(fruits+"<br>");
fruits.splice(0,2);
document.write(fruits+"<br>");
</script>
</body>
</html>
<html>
<body>
<script>
var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"];
document.write(fruits);
var citrus = fruits.slice(2);
document.write("<br>"+citrus);
</script>
</body>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var arr={"One": 1, "Two": 2, "Three": 3};
for (var key in arr)
var value=arr[key];
document.write(key+"=" + value + '<br>');
</script>
</body>
</html>
<html>
<head>
<title> Array </title>
</head>
<body>
<script>
var o=new Object();
o["One"] = 1;
o["Two"] = 2;
o["Three"] = 3;
for (var i in o)
document.write(i + "=" + o[i] + '<br>');
</script>
</body>
</html>
<html>
<head>
<script>
var arr = new Array();
arr.push (5, 6, 7);
arr.push (8, 9);
document.write("After join method "+arr.join(","))
arr.pop()
document.write("<br>After pop method "+arr.join(","))
arr.shift()
document.write("<br>After shift method "+arr.join(","))
arr.reverse()
document.write("<br>After reverse method "+arr.join(","))
arr.unshift(1)
document.write("<br>After unshift method "+arr.join(","))
</script>
</head>
</html>
