Optional ReadonlyannounceOptional ReadonlyariaAccessible name for the editing surface. It carries role="textbox", and
a textbox without a name is announced as an unlabelled edit field. The
reader can tell you are in one, but not what it is for. Defaults to
"Document"; give it the name of the thing being edited where you can.
Optional ReadonlyautofocusOptional ReadonlyeditableStart read-only. Flip at runtime with EditorView.setEditable.
Optional ReadonlyinputReplaces the default markdown-style input rules when provided.
Optional ReadonlykeymapExtra key bindings; they win over the base keymap.
Optional ReadonlynodeCustom renderers per node type (framework components in the document).
Optional ReadonlyplaceholderText shown while the document is empty.
Optional ReadonlyspellcheckBrowser spell checking; the browser's default when omitted.
Announce structural edits: blocks deleted, the block under the caret becoming a different kind, to assistive technology through a live region. On by default: a reader already reports typed characters from the DOM, but not a key press that removed three paragraphs, and silence after a destructive edit is the worst thing this surface can do. Pass
falsewhen the host provides its own live region.