uuid docs

src/mol-util/uuid.ts

@@ -6,13 +6,14 @@
 
 import { now } from '../mol-util/now';
 
+/** A UUID, either standard 36 characters or 22 characters base64 encoded. */
 type UUID = string & { '@type': 'uuid' }
 
 namespace UUID {
     const _btoa = typeof btoa !== 'undefined' ? btoa : (s: string) => Buffer.from(s).toString('base64')
 
     const chars: string[] = [];
-    /** Creates 22 characted "base64" UUID */
+    /** Creates a 22 characters 'base64' encoded UUID */
     export function create22(): UUID {
         let d = (+new Date()) + now();
         for (let i = 0; i < 16; i++) {