# How to shuffle an array in a random manner in JavaScript?

JavascriptObject Oriented ProgrammingFront End Technology

## _.shuffle()

_.shuffle is a function belongs to underscore.js, a framework of javascript. This function actually employs the Fisher-Yates shuffle algorithm to shuffle the elements in a random manner.

### syntax

_.shuffle(array);

This method takes an array as a parameter and shuffles it to get the elements in a random manner. It uses the Fisher-Yates shuffle algorithm to shuffle the arrays. For a single input, it produces various random outputs.

### Example

Live Demo

<html>
<body>
<script
type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/0.10.0/lodash.min.js"></script>
<body>
<script>
document.write(_.shuffle(["raj", "pankaj", "rahim", "rachel", "Balakrishna"]))
</script>
</body>
</html>

### Output

rahim,Balakrishna,pankaj,raj,rachel

It can also shuffle large objects using Fisher-Yates shuffle algorithm. For a single input, it gives out various outputs.

### Example

Live Demo

<html>
<body>
<script
src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/0.10.0/lodash.min.js"></script>
<body>
<script>
var people = [
{"name": "Ram", "age": 27},
{"name": "Rahim", "age": 28},
{"name": "Rakul", "age": 29},
{"name": "Rohti", "age": 21}
]
document.write(JSON.stringify(_.shuffle(people, 'age')));
</script>
</body>
</html>

### Output

[{"name":"Rahim","age":28},{"name":"Rakul","age":29},{"name":"Ram","age":27},{"name":"Rohti","age":21}]
Published on 11-Jul-2019 07:58:00