EditContext: EditContext() コンストラクター

new EditContext()
new EditContext(options)

<div id="editor"></div>

const initialText = "Hello world!";
const editContext = new EditContext({
  text: initialText,
  selectionStart: 0,
  selectionEnd: initialText.length,
});
const editorElement = document.getElementById("editor");
editorElement.editContext = editContext;
console.log(
  `EditContext object ready. Text: ${editContext.text}. Selection: ${editContext.selectionStart} - ${editContext.selectionEnd}.`,
);