javascript find all odd between two numbers

1var difference = function (a, b) { return Math.abs(a - b); }

1function relDiff(a, b) {
2 return  100 * Math.abs( ( a - b ) / ( (a+b)/2 ) );
3}
4// example
5relDiff(11240, 11192); //=> 0.42796005706134094
6

1function oddNumbers(l, r) {
2    let arr = [];
3    while (l <= r) {
4        arr.push(l);
5        l += 1;
6    };
7    return arr.filter(n => n % 2);
8}