_.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
<html> <body> <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/0.10.0/lodash.min.js"></script> </head> <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
<html>
<body>
<script
src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/0.10.0/lodash.min.js"></script>
</head>
<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}]