Function isBlock

modules/tinymce/src/core/main/ts/api/html/Schema.ts:686–686

(name: string)

  };

  const isBlock = (name: string): boolean => Obj.has(getBlockElements(), name);

  // Check if name starts with # to detect non-element node names like #text and #comment
  const isInline = (name: string): boolean => !Strings.startsWith(name, '#') && isValid(name) && !isBlock(name);