How to get the last n elements of array in JavaScript?
For an example given array have 10 elements and we want the last 4 elements.
<html>
<head>
<title>Sample Code</title>
<script type="text/javascript">
var num = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var arr = num.slice(Math.max(num.length - 4, 1))
alert(arr)
</script>
</head>
</html> Output:
You can also take slice with a negative count from the end. Then the elements for formatted output.
var array = [1, 2, 3, 4, 5, 6, 7, 8];
console.log(array.slice(-4).join(' '));How to JavaScript get the last element of the array, es6?
You can access last element of an array in JS using an length method method.
var my_array = /* some array here */;
var last_element = my_array[my_array.length - 1];Do comment if you have any questions and suggestions this topic.
Note: The All JS Examples codes are tested on the Safari browser (Version 12.0.2) and Chrome.
OS: macOS 10.14 Mojave
Code: HTML 5 Version