The DocumentType.remove() method removes a document's doctype.
The DocumentType.remove() method removes a document's doctype.
js
remove()
None.
None (undefined).
remove()
js
document.doctype; // "<!DOCTYPE html>' document.doctype.remove(); document.doctype; // null
| Specification | 
|---|
| DOM Standard  # ref-for-dom-childnode-remove①  | 
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
remove | 
24 | 12 | 23 | No | 15 | 7 | 4.4 | 25 | 23 | 14 | 7 | 1.5 | 
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    https://developer.mozilla.org/en-US/docs/Web/API/DocumentType/remove