|
| 1 | +--- |
| 2 | +title: "HTMLModElement: dateTime property" |
| 3 | +short-title: dateTime |
| 4 | +slug: Web/API/HTMLModElement/dateTime |
| 5 | +page-type: web-api-instance-property |
| 6 | +browser-compat: api.HTMLModElement.dateTime |
| 7 | +--- |
| 8 | + |
| 9 | +{{ APIRef("HTML DOM") }} |
| 10 | + |
| 11 | +The **`dateTime`** property of the {{domxref("HTMLModElement")}} interface is a string containing a machine-readable date with an optional time value. It reflects the [`datetime`](/en-US/docs/Web/HTML/Element/time#datetime) HTML attribute of the {{HTMLElement("del")}} and {{HTMLElement("ins")}} elements. |
| 12 | + |
| 13 | +## Value |
| 14 | + |
| 15 | +A string. For valid string formats, see the [`datetime` valid values](/en-US/docs/Web/HTML/Element/time#valid_datetime_values). |
| 16 | + |
| 17 | +## Examples |
| 18 | + |
| 19 | +Given the following HTML: |
| 20 | + |
| 21 | +```html |
| 22 | +<p>The paragraph <del datetime="2021-11-01">has been</del> changed</p> |
| 23 | +``` |
| 24 | + |
| 25 | +We can get the value of the `dateTime` attribute of the `<del>` element: |
| 26 | + |
| 27 | +```js |
| 28 | +const deletedText = document.querySelector("del"); |
| 29 | +console.log(deletedText.dateTime); // "2021-11-01" |
| 30 | +``` |
| 31 | + |
| 32 | +We can also set the `dateTime` property. Here, we create an `<ins>` element, then set the `dateTime` property of the `<ins>` element to the current date in `YYYY-MM-DD` format then insert it after the deleted text: |
| 33 | + |
| 34 | +```js |
| 35 | +const insertedText = document.createElement("ins"); |
| 36 | +const now = new Date(); |
| 37 | +insertedText.dateTime = `${now.getFullYear()}-${now.getMonth() + 1}-${now.getDate()}`; |
| 38 | +insertedText.appendChild(document.createTextNode("was")); |
| 39 | +deletedText.insertAdjacentElement("afterend", insertedText); |
| 40 | +``` |
| 41 | + |
| 42 | +If our script ran on January 9, 2025, our HTML would be as follows: |
| 43 | + |
| 44 | +```html |
| 45 | +<p> |
| 46 | + The paragraph <del datetime="2021-11-01">has been</del |
| 47 | + ><ins datetime="2025-1-9">was</ins> changed |
| 48 | +</p> |
| 49 | +``` |
| 50 | + |
| 51 | +## Specifications |
| 52 | + |
| 53 | +{{Specifications}} |
| 54 | + |
| 55 | +## Browser compatibility |
| 56 | + |
| 57 | +{{Compat}} |
| 58 | + |
| 59 | +## See also |
| 60 | + |
| 61 | +- {{HTMLElement("del")}} |
| 62 | +- {{HTMLElement("ins")}} |
| 63 | +- {{domxref("HTMLModElement")}} |
| 64 | +- {{domxref("HTMLModElement.cite")}} |
| 65 | +- {{domxref("HTMLTimeElement.dateTime")}} |
| 66 | +- [Date strings](/en-US/docs/Web/HTML/Date_and_time_formats#date_strings) |
| 67 | +- [Local date and time strings](/en-US/docs/Web/HTML/Date_and_time_formats#local_date_and_time_strings) |
| 68 | +- {{jsxref("Date")}} |
| 69 | +- {{domxref("Element.insertAdjacentElement()")}} |
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