Tangle is a JavaScript library for creating reactive documents. • Hacker News Board

Re: Tangle is a JavaScript library for creating reactive documents.

#31

Post by jQueryIsAwesome » Fri, Oct 21, 2011, 5:52 PM UTC

This could be really useful in an app that helps people control their finances (Register a product/service and then slide the quantity and price... and if you integrate it with wallmart products/price -or something like that- i think it would be one hell of an app)

edit: typo

Re: Tangle is a JavaScript library for creating reactive documents.

#32

Post by DanielRibeiro » Fri, Oct 21, 2011, 6:18 PM UTC

Interesting: HN's duplicated post detection seems to be disabled (this was posted only 9 days ago: http://news.ycombinator.com/item?id=3101618)

Re: Tangle is a JavaScript library for creating reactive documents.

#33

Post by evoltix » Fri, Oct 21, 2011, 6:25 PM UTC

DanielRibeiro wrote: post #32

Interesting: HN's duplicated post detection seems to be disabled (this was posted only 9 days ago: http://news.ycombinator.com/item?id=3101618 )

Funny how this submission got more attention than the one 9 days ago.

Re: Tangle is a JavaScript library for creating reactive documents.

#34

Post by troymc » Fri, Oct 21, 2011, 6:26 PM UTC

It's interesting (for me, anyway) to contrast this with Wolfram's Computable Document Format (CDF, see http://www.wolfram.com/cdf/ ).

CDF documents can only be written using Mathematica, are only playable using a special CDF Player (or Mathematica), and you have to license CDF for commercial use. Tangle is free and open source (under an MIT License), JS is "playable" in most web browsers, and JS can be written using any text editor.

Re: Tangle is a JavaScript library for creating reactive documents.

#35

Post by superchink » Fri, Oct 21, 2011, 6:26 PM UTC

DanielRibeiro wrote: post #32

Interesting: HN's duplicated post detection seems to be disabled (this was posted only 9 days ago: http://news.ycombinator.com/item?id=3101618 )

I think it allows reposting after a certain amount of time. I think this actually makes sense, because just because people missed it the first time doesn't mean it's not interesting.

Re: Tangle is a JavaScript library for creating reactive documents.

#36

Post by tomlin » Fri, Oct 21, 2011, 6:35 PM UTC

I immediately find this useful. An app I am working on for a client allows for the preparation, setup and intake of candidate interviewees. The app has a few tools that help the administrator predict how many stations or interviewers will be required based on other parameters, like time it will take to conduct the interview process.

Re: Tangle is a JavaScript library for creating reactive documents.

#37

Post by xtacy » Fri, Oct 21, 2011, 6:40 PM UTC

troymc wrote: post #34

It's interesting (for me, anyway) to contrast this with Wolfram's Computable Document Format (CDF, see http://www.wolfram.com/cdf/ ). CDF documents can only be written using Mathematica, are only playable using a special CDF Player (or Mathematica), and you have to license CDF for commercial use. Tangle is free and open source (under an MIT License), JS is "playable" in most web browsers, and JS can be written using…

While I agree with the comparison, it would be unfair to not point out the wealth of functions that Mathematica exposes:

http://reference.wolfram.com/mathematica/guide/Mathematica.h...

Re: Tangle is a JavaScript library for creating reactive documents.

#38

Post by gregwebs » Fri, Oct 21, 2011, 6:55 PM UTC

This is a specific document use of reactive programming, a paradigm where values are automatically updated when their dependencies change. Flapjax has offered reactive javascript for a long time now: http://www.flapjax-lang.org/

I think Flapjax didn't gain much traction largely because the website is ugly. Of course the the other reason is that regular event binding tends to be a good enough solution.

Some of the new client-side javascript solutions like knockout.js also offer reactive capabilities.

Re: Tangle is a JavaScript library for creating reactive documents.

#39

Post by troymc » Fri, Oct 21, 2011, 6:56 PM UTC

xtacy wrote: post #37

troymc wrote: post #34

It's interesting (for me, anyway) to contrast this with Wolfram's Computable Document Format (CDF, see http://www.wolfram.com/cdf/ ). CDF documents can only be written using Mathematica, are only playable using a special CDF Player (or Mathematica), and you have to license CDF for commercial use. Tangle is free and open source (under an MIT License), JS is "playable" in most web browsers, and JS can be written using…

While I agree with the comparison, it would be unfair to not point out the wealth of functions that Mathematica exposes: http://reference.wolfram.com/mathematica/guide/Mathematica.h...

Good point! I wonder how much of Mathematica's functionality can be bundled into stand-alone CDF documents (playable by the CDF Player).

Wolfram|Alpha has an API that can be called using JavaScript (for a fee), so some mixed solution is also worth considering.

Re: Tangle is a JavaScript library for creating reactive documents.

#40

Post by gabriele » Fri, Oct 21, 2011, 7:32 PM UTC

phogster wrote: post #26

gabriele wrote: post #24

have I been missing something or this brakes every accessibility rules? how can I "slide" without a mouse? It seems I can't even tab to the sliding enabled elements.

It works perfectly fine on my android phone.

indeed, but I couldn't find a way to make the sliders work without touching the mouse. maybe there are some keyboard shortcuts that I couldn't find. also I believe you should be able to tab over the page to reach any input element, for consistency.