code: function checkNum(nums, min, max){
    if(nums == null)
      return false;
  
    if(nums == -1)
      return true;
  
    for(let i = 0; i < nums.length; i++){
      if(nums[i]<min || nums[i]>max)
        return false;
    }
  
    return true;
  }
docs: Check if the numbers are valid
  @param nums The numbers array need to check
  @param min Minimus value
  @param max Maximam value
  @return If all the numbers are in the data range