**`Array.includes()`** is just like a lot of other methods used in JavaScript (e.g. `String.includes()`). `Array.includes()` *checks* for a specific element's presence in an array. 

The method returns true or false, depending on the result. This proves that it is a boolean method. 

>**Note:** The Javascript `Array.includes()` method is case sensitive. Therefore, for an array of characters or strings, searching for 'A' is not the same as searching for 'a'​.

Suppose you wanted to search for the value = 2 in an integer array. Following the diagram below may help you understand this concept.

*  **array** is the actual name of an array we want to search in. 
* **element** is the actual element we want to search for.
* **Start** is an **optional** parameter. It is the index we want to start searching from. If we do not use this parameter, then the language, by default, starts searching from the 0th index.

## Example 1:

This example, done without using the "start" parameter, searches for a number in an array. It is the same example used in the illustration above.

var myarray = [1, 3, 5, 2, 4];
var check = myarray.includes(2);
console.log(check);

## Example 2: 
This example uses the start parameter and shows how the element is missed if the parameter is over estimated.

var myarray = [1, 3, 5, 2, 4];
var check = myarray.includes(3,2); 
if (check==true)
console.log("Found");
else 
{
  console.log("Not found"); 
}

The code above searches for 3, starting the search from index 2. The search result will display​ "Not found" since 3 is placed on index 1. Try changing the index to 1, or 0, ​and it will find it correctly.

What is the Array.includes() method in JavaScript?

Array.includes() is just like a lot of other methods used in JavaScript (e.g. String.includes()). Array.includes() checks for a specific element s presence in an array. The method returns true or false, depending on the result. This proves that it is a boolean method.  Note: The Javascript Array.includes() method is case sensitive. Therefore, for an array of characters or strings, searching for  A  is not the same as searching for  a ​.  Suppose you wanted to search for the value = 2 in an integer array. Following the diagram below may help you understand this concept. 

What is the Array.includes() method in JavaScript?

Syntax

Example 1:

Example 2: