Write a program to find the number is negative or positive or neither positive nor negative

ript
function isNegative(x) {
  if (x < 0) {
    return true;
  } else {
    return false;
  }
}

function isPositive(x) {
  if (x > 0) {
    return true;
  } else {
    return false;
  }
}

function isZero(x) {
  if (x === 0) {
    return true;