suppose that the array a = [1 # 2jue 3 # 4], put it in another array b, in which the elements in the array an are randomly generated, how do you write it?
var a = [1,2,3,4];
b = [2,3,1,4]//
suppose that the array a = [1 # 2jue 3 # 4], put it in another array b, in which the elements in the array an are randomly generated, how do you write it?
var a = [1,2,3,4];
b = [2,3,1,4]//it is not quite clear whether you want to disorder the array elements (elements can not be repeated), or simply regard the original array as a generator to generate new elements to fill the new array (that is, elements can be repeatable).
if it is the former, shuffle algorithm _ Baidu search ;
the easiest way.
Array A disrupts sorting.
[1, return Math.random, 2, 3, 4, 5, 6] .sort (function (a, b) {return Math.random () > 0.5})
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