Every programming language is only as good as its own ecosystem. Components, libraries, and community are an essential part of a successful project, and Clojure is not behind. Clojure programmers aka Clojurians hang out in a slack channel that is free to join. Some of their maintainers are actively monitoring it. There is also a dedicated forum maintained by the Clojure team and a number of annual events.
I was amused to learn that, by using Clojure, I instantly had almost doubled the number of speaking opportunities I had. The JVM is a big deal. In Clojure, libraries tend to have a really narrow scope: when the main aim has been reached, the project is done , and people move on.
Clojure is not all fun and games. On the other hand, its JavaScript counterpart will run because functions and variables get hoisted:.
This little example shows the idea that the user has to please the compiler. For somebody, that is not a big deal; for somebody, it is. An example of an actual implication is how you organize your code: this forces you to put the most specific functions on the top of the file. While this might be partially prevented by putting the functions on a different file and then importing them, that is not always a viable solution.
Clojure has a very rich repository of libraries and components called Clojars. The Auth0 Identity Platform, a product unit within Okta, takes a modern approach to identity and enables organizations to provide secure access to any application, for any user. Auth0 is a highly customizable platform that is as simple as development teams want, and as flexible as they need.
Safeguarding billions of login transactions each month, Auth0 delivers convenience, privacy, and security so customers can focus on innovation. Give Clojure a try. Talk To Sales Sign Up. Discover and enable the integrations you need to solve identity Auth0 Marketplace. Clojure History and Rationale Clojure has been designed and implemented by Rich Hickey as an attempt to solve the pain points he was having when writing situational programs.
That is not that far from the situations a lot of us are living at our daily job. For instance: println "Hello" This is a list containing the symbol println and then the string "Hello". Code is data, data is code Most programming languages have their own syntax and grammar. If you want Clojure for the front-end which we've dabbled in to a degree, but for our company, the return on beginner Javascript developers in React is still satisfyingly high , I'd recommend Reagent.
Keep it simple. Back to Clojure proper, one thing I enjoy immensely is seeing how far I can take a program in a single file. Not always practical, but it's fun knowing you can scan a file often starting at the bottom and quickly grok it. Do know, however, reading Clojure or any LISP, that is is sometimes harder than writing it, especially in a large codebase.
It's here, I think, where statically typed languages have an edge on Clojure — refactoring is more dangerous: you can never fully tell the shape of data passing between functions. Spec has helped, for sure. For simple, obvious tasks, take a risk. On mission-critical-can't-break-type stuff, however, you'll be grateful for spec. No, it's not the anxiety-free experience you hear about in Elm or Haskell, but geez, at least you can get fresh code working fast.
It's here where I continue to believe dynamic languages like Clojure have a permanent place in history — solving problems iteratively, with little pomp and ceremony, without knowing the end from the beginning. And saying to yourself, "Yes, this works, and while not perfect, I made it quickly, and it's extensible and maintainable. I don't mean microservices.
I mean small, easily divisible namespaces in a single project that talk to each other via messages. Like, really, you can easily treat separate namespaces as if they're different actors in a plug and play network.
A talk I heard recently can't remember where suggested writing your big program from small programs, small enough that any individual program can be rewritten in a week. Clojure does this for us. When I started out, being unfamiliar with functional paradigms in general, I brought a lot of tightly coupled OO practices that I had to unlearn. Unfortunately, "real world" Clojure tutorials are scarcer than they ought to be.
The core language is simple enough that almost all Clojure code resembles itself. Thanks for the write up! Great tips, especially around ClojureScript. I haven't even started to look into that ecosystem. I've used it in a few projects years back, haven't used it in a while, then came back to it recently. The difference is night and day, to say the least, and that "day" is much brighter than it ever was before. Back then, you did lein new compojure app then you had to figure out what to change in your handler file to get the thing up and running.
Today, build, run, and everything just works. Security has seen a massive improvement, ring comes with CRSF by default, and the libraries have improved dramatically.
The Bedra talk was on point, but no longer as relevant. A constant is the few libraries, and I'm pleased to see that they have been relatively stable. This could be seen as a good or a bad thing, but I personally don't want a lot of diametric and constantly new choices when I'm trying to build projects. Stacks 1. Follow I use this. What is Clojure? Clojure is designed to be a general-purpose language, combining the approachability and interactive development of a scripting language with an efficient and robust infrastructure for multithreaded programming.
Clojure is a compiled language - it compiles directly to JVM bytecode, yet remains completely dynamic. Clojure is a dialect of Lisp, and shares with Lisp the code-as-data philosophy and a powerful macro system. Hotel booking system to rival Expedia with a tiny development team. Adopting Clojure as their main language from Ruby , etc. Payment processing pipeline with Kafka. Mastodon C. Data centre analysis Incanta , Storm. Agile development for Client projects world wide. Vero Insurance AUS.
Rebuilt policy management system in Clojure with Thoughworks. Meta - X.
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