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Deno 1.0

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581–590 of 598 posts

Re: Deno 1.0

#581

Post by z3t4 »

lame88 wrote: post #550

I briefly looked over this project when this link first popped up and didnt think much of it, but then i was surprised to see this huge surge in votes. I dont do much in the javascript and related world - can someone explain what in particular about this project has generated such interest? Even after reading the top comments, I feel like im missing the bigger pitcure.

I think the goal was to eradicate JavaScript (Deno was originally TypeScript only. But in order to run fast, TS first need to compile to JavaScript). After buying Github and NPM, moving people over from Node.JS to Deno would be the final blow to the JavaScript community.

Re: Deno 1.0

#582

Post by diffrinse »

I predict cdnjs/jsdelivr types will explode in use for Deno packages since they can make bandwidth and security guarantees behind what's actually returned from the URL as well will be able to accomodate versioning in the path. That seems to be what this dep system is built for, unless I'm missing something.

Re: Deno 1.0

#583

Post by SahAssar »

epr wrote: post #514
aazaa wrote: post #138

> ... Deno is (and always will be) a single executable file. Like a web browser, it knows how to fetch external code. In Deno, a single file can define arbitrarily complex behavior without any other tooling. > ... > Also like browsers, code is executed in a secure sandbox by default. Scripts cannot access the hard drive, open network connections, or make any other potentially malicious actions without permission. The…

Simple solution to the dependency management (spitballing): a directory of files where the filename is the module name. Each file is simply: And then in an application: import { serve } from deno.http.server; If you want nested levels so deno.X.X wouldn't be a ton of files you could possibly just do nested directories so deno/http/server would equate to deno.http.server. Most people would want the option to do depend…

Until someone thinks that it should follow redirects which probably leads to the same thing that got apt: https://justi.cz/security/2019/01/22/apt-rce.html

Not saying that makes it a bad idea, but importing/downloading trusted code over http(s) is not simple even if the protocol sorta is.

Re: Deno 1.0

#584

Post by fiddlerwoaroof »

pawelk wrote: post #542
veidr wrote: post #446

Earlier quoted context omitted.

The Deno docs recommend creating a deps.ts file for your project (and it could be shared among multiple projects), which exports all your dependencies. Then in your application code, instead of importing from the long and unwieldy external URL, import everything from deps.ts, e.g.: // deps.ts export { assert, assertEquals, assertStrContains, } from "https://deno.land/std/testing/asserts.ts"; And then, in your applica…

This was my first instinct about how I'd go about this as well. I actually do something similar when working with node modules from npm. Let's say I needed a `leftpad` lib from npm - it would be imported and re-exported from `./lib/leftpad.js` and my codebase would import leftpad from `./lib`, not by its npm package name. If / when a better (faster, more secure, whatever) lib named `padleft` appears I would just impo…

Yeah, this sort of "dependency injection" scheme is better than having random files depend on third party packages anyways: it centralizes your external dependencies and it makes it easier to run your browser code in node or vice-versa: just implement `lib-browser` and `lib-node` and then swap then out at startup.

Re: Deno 1.0

#585

Post by triyambakam »

rhlsthrm wrote: post #492
triyambakam wrote: post #341

Earlier quoted context omitted.

I'm a functional enthusiast and I find it much more enjoyable in TS. There is a lot of cool and interesting functional theory that only relates to types. Having a good type system tht TS provides has also saved me so much time debugging. It's invaluable

Any tips for how to work more functional programming into my TS code? I'm trying to learn more functional techniques.

I have found it good to learn about FP in general and then practice applying that to TS.

Re: Deno 1.0

#586

Post by karyon »

nojvek wrote: post #393

> TSC must be ported to Rust. If you're interested in collaborating on this problem, please get in touch. This is a massive undertaking. TSC is a moving target. I occasionally contribute to it. It’s a fairly complex project. Even the checker + binder (which is the core of TS) is pretty complex. One idea that comes to mind is to work with Typescript team that they are only using a subset of JS such that tsc can be com…

There is https://github.com/AssemblyScript/assemblyscript. It's not using llvm, but it's compiling a subset of typescript to webassembly.

Re: Deno 1.0

#589

Post by nojvek »

WorldMaker wrote: post #578
nojvek wrote: post #393

> TSC must be ported to Rust. If you're interested in collaborating on this problem, please get in touch. This is a massive undertaking. TSC is a moving target. I occasionally contribute to it. It’s a fairly complex project. Even the checker + binder (which is the core of TS) is pretty complex. One idea that comes to mind is to work with Typescript team that they are only using a subset of JS such that tsc can be com…

This does seem like a dangerous side-path unrelated to the Deno project's needs. From the description, it doesn't sound like Deno needs the type information for V8 optimizations (I thought they had explored that, but I don't recall, and the description here is unclear), so maybe switching to more of a two pass system of a simple as possible "type stripper" (like Babel's perhaps?) and leave tsc compilation for type ch…

Typescript already has transpile-only mode that lets it run without performing those checks and just emit.

I use it with ts-node all the time for my docker images that require fast startup.

node -r ts-node/register/transpile-only xyz.ts

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