Is there already a hoplon built-in fn that extends an existing element instead of creating a new one?

what does that mean, extend an existing element?

you can use jquery to fish around in the element and inject things, is that what you mean?

maybe an example would be better…. one sec

i just started writing a macro for it but im wondering if im not doing something the idomatic way and thats why im seeing a lot of repeating structure

yeah that's the classic functional way of programming

in lisp you can use macros to generate the boilerplate

vs in a non-functional language you'd be mutating a class or something

ok so im on the right path with the macro then

does hoplon have one built in which just adds additional attributes to the attr map?

yeah i think macros are more or less the facility you use to express structural sharing between things in lisp

there is the :attr attribute

you can also just apply the element as a function to a map with one attribute, like

(some-elem {:foo "bar"})

that will add additional attribute

ok thanks, i thinks thats more or less how i have it now

yep, macros will let you devise your own idioms that make sense for your application

building on the basic primitive operations