For Typescript

Extend Type

Create a custom-types.d.ts file, ensure it will be included in tsconfig.json.

// custom-types.d.ts

import { SlateDescendant, SlateElement, SlateText } from '@wangeditor/editor'

declare module '@wangeditor/editor' {
    // Extend Text
    interface SlateText {
        text: string
    }

    // Extend Element
    interface SlateElement {
        type: string
        children: SlateDescendant[]
    }
}