How to use Array Length in JavaScript

In this article I have described about Array Length property used in JavaScript.
  • 1086

JavaScript Array length Property

  • As mentioned earlier that for storing multiple values in a single variable we use array object .
  • The array object has a property is known as length Property.
  • With the help of length Property we can set and return the number of elements array object .

Browser support

Following are the main browsers which support the the length Property of array object

  • Internet Explorer.
  • Firefox.
  • Opera.
  • Google Chrome.
  • Safari.

Syntax

The length Property of array object has following syntax

array.length

Lets take an example

<!DOCTYPE html>

<html>

<body style ="background-color:green">

<p id="menu">CHECK THE LENGTH OF AN ARRAY</p>

<button onclick="myFunction()">CLICK</button>

<script type="text/javascript">

    function myFunction() {

        var array = ["AMAN", "SHUBHAM", "NITIN", "AMAN", "vipin"];

        var x = document.getElementById("menu");

        x.innerHTML = array.length;

    }

</script>

</body>

</html>

 

Output


 arry upcase1.jpg


When we click on button

array upcase2.jpg

Further Readings

You may also want to read these related articles :here

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