Easy way to check if a value is unassigned or not.

isUnassigned.as

package tea.util
{
	
	/**
	 * 
	 * Easy way to check if a value is unassigned or not.
	 * 
	 * @param					p_value					Value to check.
	 * @return 											True if the value is unassigned, false otherwise.
	 */
	public function isUnassigned( p_value : * ) : Boolean
	{
		return Boolean(p_value == null || p_value == undefined || isNaN(p_value) || p_value == Infinity);
	}

}