They were pointed at this talk from RubyConfwhich seemed to hit a lot of people right in the feels, and sparked a subthread with a life of its own.
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Clojure is also a dialect of LISP, this is a design decision based on some interesting properties of LISP to make the language more extensible explained later.
In contrast, a form-1 component renders the hiccup directly. The vals function extracts all values from a map and the every. We would like to write interop against this library but have certainty that either the correct externs will be automatically generated or the compiler will notify us of externs we must additionally supply.
Now, given a source file such as this: However, you do need to close any handles you create.
Although the API makes it appear as if the view is just a pointer, that pointer is really a resource that needs managing, just like the file and file mapping objects. I have been self-employed for many years, but I knew that sooner or later I wanted to try my hand at selling a product, rather than selling my time.
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We simply need to type-hint x with the foreign type for this interop call: There are others e. It is available on Github and Clojars. ClojureScript refers to the Clojure → JS compiler but within the community it’s also used for Clojure code that runs on JS engines (i.e.
doesn’t contain Java API calls). Clojure is also a dialect of LISP, this is a design decision based on some interesting properties of LISP to make the language more extensible (explained later). How to setup Leiningen/ClojureScript compiler to support user scripts?
User scripts require to start with a metadata block. How one can setup Leiningen and/or ClojureScript compiler to insert predefined metablock from e.g. a text file? I have tried following: I wanted to start learning Clojure by writing simple user scripts which I may.
In this post I’ll introduce a new hiccup compiler for Clojurescript that: Never interprets at runtime, thus has zero runtime overhead guaranteed.
If you are interested in writing a compiler for a functional language (rather than a procedural one) Simon Peyton-Jones and David Lester's "Implementing functional languages: a tutorial" is an excellent guide.
Writing Macros. Macros are applied during the compilation process. They do not exist at runtime. Because the ClojureScript compiler is implemented in Clojure, ClojureScript macros must be written in Clojure, not ClojureScript.
Fortunately, Clojure and ClojureScript are almost identical when it comes to manipulating data structures, so switching.Writing a compiler in clojurescript