Example array program in javascript

JavaScript Arrays In this tutorial, you will learn about JavaScript arrays with the help of examples. An array is an object that can store multiple values at once. The array is storing 3 values.

Create an Array You can create an array using two ways: 1. Using an array literal The easiest way to create an array is by using an array literal []. Using the new keyword You can also create an array using JavaScript's new keyword.

Add an Element to an Array You can use the built-in method push and unshift to add elements to an array. The push method adds an element at the end of the array. Note : If the element is not in an array, indexOf gives Previous Tutorial:.

Next Tutorial:. Share on:. Did you find this article helpful? Sorry about that. How can we improve it? Leave this field blank. Related Tutorials. JavaScript for Loop. Functions in JavaScript. JavaScript Objects. Arrays in JavaScript. Calculate the area of a triangle. Check if a number is odd or even. Find the GCD. Print the Fibonacci series.

Reference Materials String Methods. Array Methods. Math Object. Arrays in JavaScript are used to store an information set, but it is often more helpful for storing a set of variables of the same type. An array is a single variable in JavaScript that is used to store various elements.

When we want to store a list of elements and access them through a single variable, it is often used. Unlike many other languages where an array is a various variable reference, there is a single variable in the JavaScript array that stores various elements.

The object Arrays in JavaScript are a global object used in array building, which is high-level, list-like objects. Arrays in JavaScript are a way to store elements in a single variable in memory. By its index, the elements can be accessed in the array. The array index starts with 0. Javascript arrays are zero-based, meaning the first element index is 0. This is very important because it means that an offset of one unit will always exist: the first element will have an index of 0, and the second element will have an index of 1, and so on.

The object Array allows you to store various values in one variable. It stores a sequential fixed-size collection of the same type of elements. An array is used to store a collection set, but it is often more helpful to consider an array as a set of the same type of variables. The literal notation array makes it simple to create arrays in JavaScript. It comprises of two square brackets that wrap optional, comma-separated array elements.

Number, string, boolean, null, undefined, object, function, regular expression, and other structures can be any type of array element. You can add extra elements to the country array; then you can do it as shown below. The array can be created with the array directly by using the new keyword as shown below in the syntax.

Below an example of creating an array in JavaScript by using Array Directly with the help of the new keyword.