JavaScript Array
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Arrays are used in JavaScript when there is a need to store various values in a single variable. Arrays are also known as objects with extra array-related characteristics, through which one can easily perform actions identical to objects.
Usage of an Array
To store set of numbers or multiple objects with same type.
To store an ordered collection of values.
Syntax:
var student= new Array ("Sushmita", "Pooja", "Monika"); Example:
There are three (3) methods to create an Array in JavaScript
1. Literal
2. New keyword
3. Array constructor
1. Literal Example:
2. New Keyword
Example:
3. Array Constructor
Usage of an Array
To store set of numbers or multiple objects with same type.
To store an ordered collection of values.
Syntax:
var student= new Array ("Sushmita", "Pooja", "Monika"); Example:
<html>Output: Arrays in Javascript Monika, Pooja, Sushmita
<body>
<h2> Arrays in JavaScript</h2>
<p id="demo"></p>
<script>
var a=["Monika","Pooja","Sushmita"];
document.getElementById("demo").innerHTML=a;
</script>
</body>
</html>
There are three (3) methods to create an Array in JavaScript
1. Literal
2. New keyword
3. Array constructor
1. Literal Example:
<script>Output:
var student=["monika","pooja","sushmita"];
for (j=0;j<student.length;j++){
document.write(student[j] + "<br/>");
}
</script>
2. New Keyword
Example:
<script>Output:
var i;
var student = new Array();
student[0] = "Monika";
student[1] = "pooja";
student[2] = "sushmita";
for (j=0;j<student.length;j++){
document.write(student[j] + "<br>");
}
</script>
3. Array Constructor
<script>Output:
var student=new Array("Monika","pooja","Sushmita");
for (j=0;j<student.length;j++){
document.write(student[j] + "<br>");
}
</script>
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