Picking A Random Json Object

I've got json data. [ ['Mango','M'], ['Lychee','L'], ['Pineapple','P'], ['Banana','B'] ] I need to be able to pick an Array item randomly (e.g. ['Pineapple','P']). How can I do a

Solution 1:

Just take Math.random() and the length of the array as factor.

var array = [
    ["Mango","M"],
    ["Lychee","L"],
    ["Pineapple","P"],
    ["Banana","B"]
];
var randomItem = array[Math.random() * array.length | 0];

// take only the element with index 0alert(randomItem[0]);