One day, long after I'm gone, people will finally accept that Python and JavaScript are no longer young languages.
JavaScript is 26 years old, Python is 31. They both continue to grow in importance year-on-year, JavaScript because there is nothing on the horizon which will plausibly replace it, and Python because a large number of industries and programmers genuinely love it.
I think there's a nontrivial chance they'll both still be languages of primary importance in 50 years, but I'd bet my bottom dollar that they'll at least remain as relics yet needing support the way Fortran and COBOL exist today.
> people will finally accept that Python and JavaScript are no longer young languages
> JavaScript is 26 years old, Python is 31
I can't speak for Python, but Javascript has changed¹ massively in recent years, more so (I expect) than Fortran or COBOL every did in their active history. It could be argued that what we have now is a younger language with the same name.
> but I'd bet my bottom dollar that they'll at least remain as relics yet needing support
This I definitely agree with, though I suspect less so than Fortran/COBOL/similar. It is much cheaper to rebuild these days, and so many other things change around your projects², and there are more forces pushing for change such as a legion of external security concerns. That will add up to there being far fewer projects³ left to be maintained that haven't been redone in something new, because they fall into the comfy gap between the cushions of “it still works, don't touch it” and “it is far more hassle to replace than to live with as-is”.
----
[1] the core language is still the same, but there is so much wrapped around it from the last decade or so that I suspect someone who learned it fresh recently would struggle initially on EcmaScript 3 or before/equivalent.
[2] where a Fortan/COBOL project might live for all its decades on the same hardware using the same library versions.
[4] no absolutely fewer of course, but relative to the number of people capable of working on them – much of the price commanded by legacy COBOL work is due to very few having trained on the language in decades and many of those that did earlier being fully not-coming-back-for-any-price retired or no longer capable at all (infirm or entirely off this mortal coil), so those remaining in appropriate health and available are in demand despite a relatively small number of live projects.
Fortran77 vs Fortran90 were fairly different languages that required a substantial revision to the numerical methods assignments that I had in the early 90s as the department shifted from one to the other.
> There are now two forms of the source code. The old source code form, which is based on the punched card, and now called fixed form and the new free form.
> ...
> A completely new capability of Fortran 90 is recursion. Note that it requires that you assign a new property RESULT to the output variable in the function declaration. This output variable is required inside the function as the "old" function name in order to store the value of the function. At the actual call of the function, both externally and internally, you use the outer or "old" function name. The user can therefore ignore the output variable.
> but Javascript has changed¹ massively in recent years
Does anyone have any good resource to learn modern JavaScript? Not any of the weekly js framework, but the updated language, capabilities and patterns.
I have found https://javascript.info/ to be a good resource for both learning and reference around modern JS. I visit it instead of MDN with regularity for practical examples of JS features.
The grammar can be a bit spotty in places - but it is open source and has gotten a lot better.
I can recommend Gary Bernhardt's execute program[0]. One of the courses offered is "Modern Javascript" which goes through additions in ES5 and ES2020. There are also multiple courses on typescript. It does cost some money, but there are occasionally special offers.
Yes...Fortran at least has changed a lot since inception. There's been Fortran 90, 95, 2003, 2008 & 2018 standards since to keep up with the various industry fads of the time (You want OO Fortran? Sure thing.). You can get a good overview of Fortran features from inception through the 2008 standard in the paper "The Seven Ages of Fortran" by Michael Metcalf or on the Fortran wiki (https://fortranwiki.org/fortran/show/Standards).
Does a lot of that extra pool of features get used in production (relative to more "legacy" code) as seen with many reengineering JS projects regularly, it is the Fortran user base more conservative? I might expect the latter, but this is just a gut guess.
I'm not doing much work with Fortran-using communities these days, so this is an opinion only, and probably out of date in various ways.
Yes, developers are using the new features. Most code I touched was regularly using up to 2003 features, with later stuff dependent on other factors (solid compiler support across different compilers being a big one). However, most Fortran programs are going to be fleshed out with components taken from the vast collections of well debugged and tested libraries available, many of which are still F77, and probably will stay that way. Fortran is more 'conservative' in the sense that there's not much compulsion to rewrite working code in the name of 'refactoring' or whatever. Adoption of new features is more 'I'm going to use a select set of things that will make my life appreciably easier' rather than 'everyone on board with all the latest shiny things'.
> there is nothing on the horizon which will plausibly replace it
I'm not going to be making any bets - but the one project that has possibility is WASM. A mature, polyglot ecosystem on top of WASM runtimes with web-apis seem like it could displace JS in browser as #1.
This is not likely to change anytime soon (if ever), as nobody is working on this, and there is even quite strong opposition to get features in that are fundamentally needed to run anything else than the very few languages that already compile to WASM. ("Nobody" is interested in invalidating their investment in JS ;-)).
Also WASM is actually slow, or better said, "it does not deliver its full potential".
It will need advanced JIT compilers to keep up with the other two mayor VM langues. But in this regard WASM is behind around 20 years of constant development and improvement.
My strongest hopes in this regard are currently with Microsoft (even I don't trust this company at all!), who are indeed interested to run their CLR stuff in a WASM VM, and could probably deliver on the needed features. But then, when you would run a CLR-VM (or a JVM) on top of a WASM VM, you know, you're building just the next Matryoshka… There are no real benefits to that besides "look mom, it runs in the browser".
Probably not. Unless you're rendering to another target besides the DOM (ie canvas) I doubt you see JS displacement as #1 in the browser. JS is not the performance bottleneck, the DOM itself is. And in the meantime, you've got 25 years of example code, component libraries, talent development, dev productivity tooling, browser integration, etc built up around it.
And unlike other operating systems, the browser does not give you any kind of standard library of reasonably good components to build on. So the sheer size and volume of components and the ecosystem built up around npm well be an uphill battle for any WASM target language to compete with.
>Unless you're rendering to another target besides the DOM (ie canvas) I doubt you see JS displacement as #1 in the browser.
if we're talking on the level of 20,30,50 years, we may in fact be able to move away from a DOM-based web. and WASM is simply a binary spec, so it can adjut with whatever comes on the horizon. We've had similar sized giants rise and fall in that span.
Yes, Perl certainly took an odd turn on their 'next gen version of the language' journey, but I'm willing to bet there will be a Perl community running 5.247.2 or some such decades from now, alongside sh, awk & sed.
That's one of the things I pray every day to go away. (Even I don't believe in any gods, and am a Linux-only user for the last 20 years).
The Unix shell language is one of the most horrific legacy technologies that are still around. I really wish it dies soon™ and gets replaced finally by something sane!
Why did Python win the war with Ruby? Was it purely the math community deciding this is where we throw our weight and left Ruby the runt of the litter?
The libraries. Ruby has Rails. Python has... everything else (plus Django, so it also kinda has "a Rails"). You'll likely be using something less well-maintained and shakier if you use Ruby outside of Rails stuff, than if you'd picked Python. Python's basically the modern Perl.
Why that all happened, IDK.
I write that as someone with a soft spot for non-Rails Ruby (after much consideration and repeated encounters, I kinda hate Rails). But it's rarely the best choice, unfortunately.
I'd reckon the parent's suspicion about the scientific community is correct in that it was a large influence. When ML and deep learning blew up, the academic Python community was in a great position -- you had numpy and scipy early on (both optionally BLAS and LAPACK btw), then scikit-learn for ML, matplotlib for plotting results, open CV ports, etc. As for why Python was adopted so early by the scientific community, I'm not sure. Maybe because it was a scripting language that was also very friendly for hooking to C and Fortran?
I genuinely love Python. Not in a shallow feature-to-feature way. But deeply that it has enabled a career and provides a livelihood to me and my family. It puts bread on the table. It taught me how to program and it taught me the power of computers.
Life changing tool. No other tool in my house comes close to what computers + python has done in my life.
Oh, I like it too. It's got problems like most languages that see any actual use, but it's totally OK, even good. I didn't intend my post as a put-down of Python, so if it came off that way—whoops, not what I was going for.
It's funny, you don't hear much about the Python/Ruby war anymore. Python was more of a general purpose language and had decent web frameworks (Django and Flask primarily). Ruby's main claim to fame was, and still is, Rails. Rails has lost a bit of steam over the years, partly due to node.js and the microservice revolution, so to speak. If anything, Sinatra is a better fit for microservices and yes, sure microservices aren't a perfect fit for all use cases, but they do exist now and are reasonably popular compared to when Rails first came out.
Additionally, Python made significant inroads as a teaching/academic language and a scientific/math/ML language.
Way back in 2004, I had been using C/C++, Java and Perl and was ready for something new and useful. I'd heard about Ruby and Python at that point and tried both. Ruby felt too much like Perl for my tastes (no surprise, it's kind of like OO Perl) and while I didn't love the significant whitespace in Python, it just looked cleaner and simpler to me.
I have been using Python off and on ever since. I have worked with Ruby a bit as well. What's funny is that they are fairly similar and I've long argued that the two language communities would be better and stronger if they "joined forces".
But of course people have strong opinions about programming languages. Myself personally, I like Python a lot more than Ruby, but I've been using Go for a few years now and it's my current language of choice.
True, but Python became more popular as a general purpose language. For example, Python starting shipping in most Linux distributions sometime in the late 2000s, Ruby did not.
I didn't mean to imply that Ruby isn't or can't be a general purpose language.
It was already in wide use for scientific computing by 2000, due to the comparative ease of writing interfaces to C code. The main idea was to use Python as a glue language to "steer" high-performance computing.
The Python/C API was easy to learn and use, Python's reference counts worked well for C-based objects, and it was easier to build non-trivial data structures than Perl or Tcl, which were its two main competitors at the time.
(Tcl extensions required manual garbage cleanup, I remember Perl's extension API as being rather complex, and I had to read the Advanced Perl manual to understand something as simple as having a list of dictionaries.)
> Python works around it by having so many libraries built in C or C++.
Which works quite fine, until it doesn't.
By than the needed rewrite in some language that delivers decent performance and safety all over the place in one package will be very expensive.
I'm not saying that you should avoid Python (and its native code kludge) altogether but when using it just pray that you never reach that point mentioned above. It's a dead end and will likely require an almost full rewrite of a grown, business critical (and already heavily optimized) application.
Prototyping in Python, then rewriting the performance critical parts in a speedier more difficult language is one of the most efficient paths a project could take.
I knew Python decently well before I ever played with Ruby.
Ruby to me feels like a very ugly version of Python. It's like Python and Perl had a baby, and I have very strong negative opinions of Perl's syntax. It baffles me how a language that people jokingly refer to as a "write-only" language ever got any sort of ground.
I also think it is easier to use, period. I've used Ruby professionally since the Rails 1 days, and still program in it most days. A couple of years ago, while working at an AI company, I helped out on an ML project due to a time crunch, and I needed to use Python to contribute. I wasn't asked to do anything ML-specific, but rather help by building out infrastructure and data processing pipelines, i.e. the stuff that used the ML models.
I'd never used Python before but within a couple of hours I was writing code and in less than a week I'd engineered a pretty slick, very robust pipeline. I was quite honestly fairly astonished at how quickly I became productive in the language.
I could be wrong about this (my experience with Python started and stopped in that one week) but the impression I got was that Python is smaller, more constrained (i.e. fewer ways to do the same thing), and syntactically less complex.
Python is easier to use if you come from almost any background, programming or not. I believe this is primarily b/c there isn't a lot of "special syntax" in Python, it's all very explicit and common. The same is not true with Ruby.
Could you point out specific parts of python that are easier for someone with C/C++ background as opposed to Ruby? I remember starting with Ruby (after rudimentary CS50-level C), and finding it quite reasonable and logical, and nicer than python. I still think it's nicer than python, although I've long since stopped using it.
I believe the issue isn't so much "vanilla python" vs "vanilla ruby" for a developer coming from a C background but rather that ruby's programming style leads to a significant bit of meta programming which (aside from being a bit of a challenge to get one's head around) leads various shops and frameworks having built their own DSL for writing ruby.
Open classes give me the security heebie jeebies.
irb(main):001:0> "foo".bar
(irb):1:in `<main>': undefined method `bar' for "foo":String (NoMethodError)
from /usr/local/lib/ruby/gems/3.1.0/gems/irb-1.4.1/exe/irb:11:in `<top (required)>'
from /usr/local/bin/irb:25:in `load'
from /usr/local/bin/irb:25:in `<main>'
irb(main):002:1* class String
irb(main):003:2* def bar
irb(main):004:2* "foobar!"
irb(main):005:1* end
irb(main):006:0> end
=> :bar
irb(main):007:0> "foo".bar
=> "foobar!"
irb(main):008:0>
On one hand, that's really neat. On the other hand, the ability to add or modify a method in a system class is not something that I'd want near production code. I'm sure that other orgs have sufficient checks and style guide to prevent something from creeping in... but that sort of flexibility in the language is something that I'd prefer to stay away from if I want to be able to reason about ruby code.
See also Ruby Conf 2011 Keeping Ruby Reasonable by Joshua Ballanco https://youtu.be/vbX5BVCKiNs which gets into first class environments and closures.
JavaScript is 26 years old, Python is 31. They both continue to grow in importance year-on-year, JavaScript because there is nothing on the horizon which will plausibly replace it, and Python because a large number of industries and programmers genuinely love it.
I think there's a nontrivial chance they'll both still be languages of primary importance in 50 years, but I'd bet my bottom dollar that they'll at least remain as relics yet needing support the way Fortran and COBOL exist today.