How do I input random numbers in array and then get their sum ?

Answer 1

for a sum of them :

var sum, i;
for(i=0, i<arr.length, i++){
sum+= arr[i];
}

Answer 2

try this:
var arr = [];
var rndNum = Math.round(Math.random()*x);
arr[arr.length]=rndNum;

**x is max number it can produce

Now, you can put last 2 lines in some kind of loop to do it faster.

Answer 3

Thanks Amar

Answer 4

Thanks bunches