Solution 1
var points = [40, 100, 1, 5, 25, 10];
points.sort(function(a, b){return 0.5 - Math.random()});
// [ 1, 100, 40, 10, 25, 5 ]
points.sort(function(a, b){return 0.5 - Math.random()});
// [ 5, 1, 25, 100, 10, 40 ]
...
...Solution 2
var points = [40, 100, 1, 5, 25, 10];
var i, j, k;
for (i = points.length - 1; i > 0; i--) {
j = Math.floor(Math.random() * i);
k = points[i];
points[i] = points[j];
points[j] = k;
}
console.log(points);
// [ 10, 40, 100, 1, 5, 25 ]
console.log(points);
// [ 10, 40, 25, 100, 5, 1 ]
...
...Make a function..
var points = [40, 100, 1, 5, 25, 10];
function myFunction() {
var i, j, k;
for (i = points.length -1; i > 0; i--) {
j = Math.floor(Math.random() * i)
k = points[i]
points[i] = points[j]
points[j] = k
}
console.log(points) ;
}
myFunction();
// [ 10, 5, 25, 1, 40, 100 ]
myFunction();
// [ 1, 25, 100, 10, 5, 40 ]Solution 3
function shuffle(array) {
var currentIndex = array.length, temporaryValue, randomIndex
// While there remain elements to shuffle...
while (0 !== currentIndex) {
// Pick a remaining element...
randomIndex = Math.floor(Math.random() * currentIndex);
currentIndex -= 1;
// And swap it with the current element.
temporaryValue = array[currentIndex];
array[currentIndex] = array[randomIndex];
array[randomIndex] = temporaryValue;
}
return array;
}
var points = [40, 100, 1, 5, 25, 10];
shuffle(points);
console.log(points);
// [ 40, 100, 5, 10, 1, 25 ]
console.log(points);
[ 40, 1, 5, 10, 100, 25 ]Sources
array math random shuffle solution sort
