Answers for "round to 1dp js including 0"

Javascript round number to nearest 5

function round5(x)
{
    return Math.ceil(x/5)*5;
}

javascript round .5 down

//standard round function, except round .5 down instead of up
function roundHalfDown(num) {
  return -Math.round(-num);
}
roundHalfDown(1.5);// 1
roundHalfDown(1.6);// 2