{"id":434,"date":"2019-12-03T18:25:48","date_gmt":"2019-12-03T17:25:48","guid":{"rendered":"https:\/\/www.codemotion.com\/magazine\/interview-claudio-dalicandro-what-is-elm-and-why-should-i-care\/"},"modified":"2021-12-23T15:33:13","modified_gmt":"2021-12-23T14:33:13","slug":"interview-claudio-dalicandro-what-is-elm-and-why-should-i-care","status":"publish","type":"post","link":"https:\/\/www.codemotion.com\/magazine\/ai-ml\/machine-learning\/interview-claudio-dalicandro-what-is-elm-and-why-should-i-care\/","title":{"rendered":"What is ELM and why should I care?"},"content":{"rendered":"\n

Hello Claudio. Recently, you\u2019ve given a speech<\/span> related to ELM that is purely functional and is developed with an emphasis on usability, performance<\/span>, and robustness. Would you like to briefly explain what your talk was about?<\/strong><\/p>\n\n\n\n

ELM is a pure functional language. I turned to the community<\/span> that’s beginning more than anyone else to use the functional to show that – yes! – JavaScript<\/span> can be dealt with in a functional way, but there are pure functional languages that bring us very strong advantages, including ELM, an ML language where there are no runtime errors. Bringing this concept into a world where “null is not a function” or “undefined is not a function” are errors on the agenda, and probably seen by a JavaScript developer dozens of times a day, could be an advantage. I tried to emphasise the interoperability<\/span> of this language with JavaScript<\/span>. It’s possible to create elements in ELM which can be inserted in a codebase<\/span>, for example, React<\/span>. The idea was to be more interested in raising awareness of the language because, aside from ELM, there are many ML-style functional languages related to JavaScript<\/span>. In fact, during the talk, I received many questions about these languages from the community members. Facebook<\/span>, for example, is working on an ML-like language.<\/p>\n\n\n\n

In your opinion, is this technology continuing to evolve?<\/strong><\/p>\n\n\n\n

Nothing is perfect or static, and ELM is evolving because it emerged in a period when the maximum aspiration of a functional language usable in JavaScript<\/span> was to write a very small component, but which was then adopted by quite complex web applications<\/span>. So it’s evolving towards the usability of code and packetisation. Another proof that ELM is evolving is that the communities and conferences are inviting important people related to this programming language<\/span> as it happened in case of Codemotion<\/span> as well. One of the keynote speakers at Codemotion Rome 2018 was Richard Feldman, one of the creators of ELM.<\/p>\n\n\n\n

Do you have any advice for those who are approaching the area of functional programming<\/span>?<\/strong><\/p>\n\n\n\n

There is no ELM community, at least in Rome<\/span>, but it is possible to start talking about ELM on an international level. Founding an ELM community would certainly be a good idea: the online documentation is well done, and the Open Source<\/span> code, which is an excellent resource to grow, is also available. Moreover, it could be an opportunity to collaborate with colleagues, friends, developers and maybe carry out a project<\/span> from scratch, which is always the best way to grow. If anyone’s interested, there’s a repository of Elixir Rome<\/span> where there’s an app that I used together with Gabriele Santomaggio during our talk at Codemotion Rome 2018; the front-end is entirely developed in ELM.<\/p>\n\n\n\n

Could you tell us why you decided to talk about ELM? Did you want to spread the word about it or there is someone in the community<\/span> who requested this kind of talk?<\/strong><\/p>\n\n\n\n

Once I was talking to one of RomaJS’s leaders, Matteo Manchi, and I told him that I wanted to give this kind of talk to the PHP community. Matteo told me that surely front-end side would have been well-covered, inviting me to do the talk at one of the meeting of his community<\/span>, and of course I accepted this invitation.<\/p>\n\n\n\n

I must also add that requests from community members are always listened to; lately the communities<\/span> communicate through Slack, and there’s a Slack for every community<\/span>: BEAM Italy<\/span>, RomaJS, the Slack for all the GrUSP. If you’re interested, just do a quick search on Google<\/span> and you find some Slacks to sign up to, where you can request support for each specific topic.<\/p>\n\n\n\n

In your opinion, why should anyone who has never been interested in the topics related to ELM and in functional programming<\/span> in general attend the talk like this?<\/strong><\/p>\n\n\n\n

Something closely related to ELM is the lack of runtime errors. Moreover, it’s interesting that ELM is a pure language, and therefore if you wanted to do all the functional tests on an entirely ELM codebase, having 100% coverage would guarantee the lack of bugs, which is no trivial matter. I would also add the readability of the code. When you feel confident with the language, we’re talking about an extremely readable code, a very lean and very well-made syntax<\/span>. Even the ELM codestyle standards are designed to use versioning in the most correct way. Sometimes, until you try and you have a little awareness of what it’s like, functional programming<\/span> looks complicated, but once you get stuck in and see people who didn’t even know what a remap was until two years ago, now they use it constantly within their code.<\/p>\n\n\n\n

Thanks for all this interesting information. Now let\u2019s change the subject a bit<\/span>. Could you tell us a bit<\/span> about yourself?<\/strong><\/p>\n\n\n\n

I’m a back-end developer and currently, I work at AdEspresso, a startup that deals with marketing activities on Facebook<\/span>. It’s been a while since I delivered my last talk, but my first talk dates back to 2014 – I delivered it at the Symfony Day conference. I was mainly engaged with the PUG Roma community. My favourite programming language<\/span> was PHP<\/span>. It changed a little bit<\/span> around four years ago when I also dedicated myself to the programming language<\/span> called Elixir. What I try to do when I deliver my talks is to increase the interest in functional languages, towards this paradigm that’s much older than you think and that’s beginning to re-emerge through frameworks and good practices originating especially in the world of JavaScript<\/span>.<\/p>\n\n\n\n

Let\u2019s go back to the start\u2026 Why did you choose a career in the IT industry?<\/strong><\/p>\n\n\n\n

In reality, I studied a completely different thing: I am a computational and theoretical chemist. I joined the IT world because it was my first serious work experience. At the very beginning, it was not serious: we drew up a sort of micro company<\/span> with another colleague. Later on, things went very well, so I decided to drop out of my studies in chemistry and devoted myself to the IT world. At the beginning I was a system engineer and I started programming in C<\/span>++, then, at my first serious job<\/span>, there was the need to make an application for distributed work, and then I made my first web application<\/span> even though it was obviously with very particular methods, it was in PHP<\/span> and it’s certainly not comparable with what can be done (it happened more or less in 2006). Later on, I became interested in web programming.<\/p>\n\n\n\n

Claudio, could you tell us how you keep yourself informed on all the latest tech news? Do you follow any course? Do you attend the conferences?<\/strong><\/p>\n\n\n\n

Absolutely! Doing all these things is super important. Since Codemotion conferences or specifications began, for example, those of GrUSP when I worked in the PHP environment, or those of BEAM Italy<\/span> now that the team<\/span> is engaged on Elixir, I think the quality of Italian code and programmers<\/span> has increased. The best thing for keeping yourself up-to-date is joining the community<\/span> created within the largest conferences and attending the meetups, with monthly meetings, mailing lists etc. There\u2019s no better way to grow and discover new things than the community<\/span>. The community<\/span> doesn\u2019t take charge of anything you learn and it\u2019s the best way to discover what to study tomorrow. There are no professors within the community<\/span> and no one\u2019s obliged to teach you; the exchange is mutual! The advice I give to everyone who is starting to develop or is entering the tech world is: the community<\/span> is the most important thing!<\/p>\n\n\n\n

Do you have any advice for those who are approaching functional programming<\/span> or who are starting their career?<\/strong><\/p>\n\n\n\n

The best advice I can give is “get out of your comfort zone: if you keep doing things you know how to do, you’ll never evolve”. That said, specifically with functional languages, I can say that, as with everything connected to IT, the more you keep going, the more you weaken myths. You shouldn’t be scared; what they sell you as complicated often isn’t.<\/p>\n","protected":false},"excerpt":{"rendered":"

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