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Show HN: Time travel debugger for web development

replay.io

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Re: Show HN: Time travel debugger for web development

#21

Post by scns »

jasonlaster11 wrote: post #4

Co-founder here. It feels incredible to be sharing Replay with all of you. It's been a labor of love the past five years! Replay started off as a simple experiment in what would happen if we added a step back button and rewind button to the Debugger. We quickly realized two things. First, nobody uses breakpoints. Second, being able to share is so much more powerful than being able to rewind. Here’s how Replay works t…

Looks amazing, thank you for building it. Since React got mentioned several times on the landing page, i need to ask: is it framework agnostic?

Re: Show HN: Time travel debugger for web development

#23

Post by jasonlaster11 »

ShaneMcGowan wrote: post #20

How well does this play with something like Angular or React? I know there is a lot of internal logic going on in those apps

Replay has native support for React DevTools so you can easily inspect the component tree, props, state, etc... High level, because Replay replays the browser session everything just works. Even I can understand Angular apps and i've never built one ;)

Re: Show HN: Time travel debugger for web development

#24

Post by _bohm »

theryanjduffy wrote: post #3

Engineer @ Replay here - If you're a console.log kind of developer (isn't everyone at least some of the time?), you should check this out. Imagine being able to add console.log() statements to code that already ran and seeing the results immediately! It's a bit mind blowing the first time you use it.

lol, now this is the kind of marketing that speaks to me

Re: Show HN: Time travel debugger for web development

#26

Post by jasonlaster11 »

swyx wrote: post #5

That landing page looks right out of Bret Victor's time travel demos ( https://www.youtube.com/watch?v=EGqwXt90ZqA , or http://worrydream.com/LearnableProgramming/ ). Communicates the value instantly. Incredibly well done! IMO the most time consuming issue in triaging bug reports is reproducing them. Replay definitively solves the "can't repro this" problem.

Thanks! Bret Victor has been my inspiration. Ever since I watch inventing on principle ten years ago, I knew this was what I wanted to build. In fact many folks on the team have a similar story. That's the crazy part about IoP for me. It's created a movement!

Re: Show HN: Time travel debugger for web development

#27

Post by billti »

Looks very cool. When I've been working on native code on Windows, the WinDbg time-travel feature has been a magical experience that's saved countless hours (https://docs.microsoft.com/en-us/windows-hardware/drivers/de...). I expect and hope this will do the same for web development.

p.s. On some pages (e.g. https://www.replay.io/pricing), I only see the Mac download button, even though I'm running Edge on Windows.

Re: Show HN: Time travel debugger for web development

#28

Post by jasonlaster11 »

throwaway59553 wrote: post #25

You guys have a download button for Mac OS X (apple logo), and you have a button with the Windows logo. But there isn't a windows version yet as the pop-up tells me. And why isn't there a linux button, if you actually have a linux version?

The button is platform specific. So if you're on linux, it should show the linux icon. Windows support is on the way. It just entered alpha two weeks ago and we're targeting Beta early october. We record low level windows os calls and replay them on linux in a virtualized environment. Frankly thrilled it works at all :)

Re: Show HN: Time travel debugger for web development

#30

Post by throwaway59553 »

jasonlaster11 wrote: post #28
throwaway59553 wrote: post #25

You guys have a download button for Mac OS X (apple logo), and you have a button with the Windows logo. But there isn't a windows version yet as the pop-up tells me. And why isn't there a linux button, if you actually have a linux version?

The button is platform specific. So if you're on linux, it should show the linux icon. Windows support is on the way. It just entered alpha two weeks ago and we're targeting Beta early october. We record low level windows os calls and replay them on linux in a virtualized environment. Frankly thrilled it works at all :)

Ok thanks for clarifying that. Best of luck for your team.
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