The includes method for arrays in JavaScript is a built-in function that checks the existence of a specified element within an array. It returns true if the element can be found in the array; otherwise, it yields false.
- It is important to note that the includes method is case sensitive.
Syntax:
Example
array.includes(searchElement, start)
Parameters:
Search : The element to search for
Begin: The default value is set to 0. This indicates the index at which the search operation will commence.
Return value:
It returns a Boolean value, either True or False.
Browser Support:
| Chrome | 41 |
|---|---|
Edge |
9 |
| Firefox | 40 |
| Opera | 28 |
Example 1
JavaScript TypedArray includes Method
Example
<script type="text/javascript">
// JavaScript to illustrate includes() method
// Taking input as an array
var pyVisualizer= [12,24,56,78,2];
a = arr.includes(2)
document.write(a);
// expected output: arr[Output:2]
</script>
Output:
Example 2
JavaScript TypedArray includes Method
Example
<script type="text/javascript">
// JavaScript to illustrate includes() method
// Taking input as an array
var pyVisualizer= [12,24,56,78];
a = arr.includes(2)
document.write(a);
// expected output: arr[Output:false]
</script>
Output:
