Maps each element tag name to its data type.
void means the element carries no data property (e.g. line-break).
void
line-break
Declared as type (not interface) to prevent accidental declaration merging.
type
interface
Maps each element tag name to its data type.
voidmeans the element carries no data property (e.g.line-break).Declared as
type(notinterface) to prevent accidental declaration merging.