Js.coerce_opt (Dom_html.document##getElementById id)
I'm new to OCaml, and I'm dealing with Js_of_Ocaml recently. I've seen code as above that includes two pounds after between variable and function. What do they mean?
What does "##" after variable mean?
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Ordinary method calls for OCaml objects are written as
obj#meth.In order to handle
Jsobjects,js_of_ocamladds a (ppx) syntax extension that usesobj##methfor invoking methods forJsobjects: https://ocsigen.org/js_of_ocaml/4.0.0/manual/ppx .