Answers for "Math.random() no matching numbers"

random int between two numbers javascript

// Between any two numbers
Math.floor(Math.random() * (max - min + 1)) + min;

// Between 0 and max
Math.floor(Math.random() * (max + 1));

// Between 1 and max
Math.floor(Math.random() * max) + 1;

javascript non-repeating randomize array

var nums = [1,2,3,4,5,6,7,8,9,10],//all numbers to be randomized
    ranNums = [],
    i = nums.length,
    j = 0;

while (i--) {
    j = Math.floor(Math.random() * (i+1));
    ranNums.push(nums[j]);
    nums.splice(j,1);
}
ranNums.next().value; //To use afterwards (for each time that the numbers are used)