Uses toggleAttribute

Author: lindseywild

README.md

@@ -80,7 +80,7 @@ So, a relative date phrase is used for up to a month and then the actual date is
 | `month`        | `month`          | `'numeric'\|'2-digit'\|'short'\|'long'\|'narrow'\|undefined`                                | <sup>***</sup>                   |
 | `year`         | `year`           | `'numeric'\|'2-digit'\|undefined`                                                           | <sup>****</sup>                  |
 | `timeZoneName` | `time-zone-name` | `'long'\|'short'\|'shortOffset'\|'longOffset'` `\|'shortGeneric'\|'longGeneric'\|undefined` | `undefined`                      |
-| `noTitle`      | `no-title`       | `'boolean \| undefined'`                                                                    | `undefined`                      |
+| `noTitle`      | `no-title`       | `-`                                                                                         | `-`                              |
 
 <sup>*</sup>: If unspecified, `formatStyle` will return `'narrow'` if `format` is `'elapsed'` or `'micro'`, `'short'` if the format is `'relative'` or `'datetime'`, otherwise it will be `'long'`.
 

src/relative-time-element.ts

@@ -388,7 +388,7 @@ export class RelativeTimeElement extends HTMLElement implements Intl.DateTimeFor
   }
 
   set noTitle(value: boolean | undefined) {
-    this.setAttribute('no-title', value?.toString() || '')
+    this.toggleAttribute('no-title')
   }
 
   get datetime() {