v1
8/13/2019 by Igor 8/14/201900
Setup JavaScript
var a = [];
for (var i=0;i<100000;++i) {
a[i]=i;
}
function shuffle(a) {
var j, x, i;
for (i = a.length - 1; i > 0; i--) {
j = Math.floor(Math.random() * (i + 1));
x = a[i];
a[i] = a[j];
a[j] = x;
}
return a;
}ready
a = a.map(function(elem,index) { return [elem, Math.random()]})
.sort(function(a,b){ return a[1] - b[1]})
.map(function(elem){return elem[0]});
console.log(a[0]);ready
shuffle(a);
console.log(a[0]);