问题
I want to randomly shuffle these two arrays in the same function
var array1 = [1,2,3,4,5];
var array2 = [6,7,8,9,10];
So that it returns each array randomly shuffled such as
4,2,3,5,1
7,9,6,8,10
Also on return I want a line break between the two, please help?
回答1:
Added shuffle method to Array.prototype for easy access - returns a modified array keeping the original unchanged.
Array.prototype.shuffle = function() {
var rIndex, temp,
input = this.slice(0),
cnt = this.length;
while (cnt) {
rIndex = Math.floor(Math.random() * cnt);
temp = input[cnt - 1];
input[cnt - 1] = input[rIndex];
input[rIndex] = temp;
cnt--;
}
return input;
}
var array1 = [1, 2, 3, 4, 5];
var array2 = [6, 7, 8, 9, 10];
document.getElementById('shuffle-btn').onclick = function(){
document.getElementById('output').innerHTML = [array1.shuffle(), array2.shuffle()].join('\n');
}<button id="shuffle-btn">Shuffle</button>
<pre id="output"></pre>来源：https://stackoverflow.com/questions/43281492/trying-to-shuffle-multiple-arrays-in-javascript-but-in-the-same-way