emptyother

class Guid {
	public static newGuid(): Guid {
		return new Guid('xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, c => {
			const r = Math.random() * 16 | 0;
			const v = (c == 'x') ? r : (r & 0x3 | 0x8);
			return v.toString(16);
		}));
	}
	public static get empty(): string {
		return '00000000-0000-0000-0000-000000000000';