打乱数组顺序

randomArray.js

function randomArray (array) {
    if (array.length === 1) {
        return array;
    } else {
        var len = array.length;
        var index = ~~(Math.random() * len);
        var item = array.splice(index, 1);
        return item.concat(randomArray(array));
    }
    
}
var array = [1,2,3,4,5,6];
var result = randomArray(array);
console.log(result)