Scratch.js
Dev tools
javascript scratchpad
SHOW HN2020
How HN took it
6 positive, 18 neutral or asking, 1 mixed, 2 critical, out of 27 comments about the project. Thread score +0.07.
Idea: 3 for, 1 againstDesign: 2 for, 1 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Simple and effective; fun to use for quick JS experiments
From 3 comments
I love how simple and effective this is. I'm also building a web-based literate programming environment called Starboard[1] that's probably a hundred times the amount of code…
protoduction on HNAh, I do that too, that must be why playing with this app made me happy :-) Thanks for making it, have bookmarked it.
robbiejs on HNIt's super cool how the result of any evaluated expression is also itself an evaluable expression.
y2bd on HN
Inline multi-line execution via selection is useful
From 1 comment
Very cool. Love this - great work!
jawnknee on HN
Objections
Infinite loops such as while(1) can freeze the tab with no escape
From 2 comments
Do you, or the broader community, have any ideas about solving infinite loops? I'm on mobile so I can't test this at the moment, but I imagine that while(1) crashes the tab. What…
angleofrepose on HNA determined user will still be able to figure out something that blocks forever, for instance run a WASM program that has an infinite loop in it.
protoduction on HN
Cursor can get stuck inside output tags (bug, since fixed)
From 1 comment
Very cool. Small issue: I find that the cursor can be hard to use sometimes. For example, if I clear and then execute the single line ``` "<style>body {background-color:…
SamBam on HN
Requests
Support Mac Command key instead of Ctrl for run (fixed)
From 3 comments
Can you give us Mac users some love and replace ctrl w/ command ? My muscle memory is giving me a hard time xD
OzzyB on HNI suggest using CMD+Enter for Mac. This is the closest/better alternative to CTRL+Enter for PC, albeit Mac having a CTRL key.
anonytrary on HNfixed
kahole on HN
Render Element or Node results as DOM instead of [object] text
From 1 comment
Suggestions: ``` If the result is an Element (or perhaps Node) insert it into the document instead of for example "[object HTMLCanvasElement]" A potentially more difficult one…
Lerc on HN
Soft-wrap lines and support mobile execution
From 1 comment
Is it poasible to soft-wrap lines and execute functions on mobile? Its cool haha
joshxyz on HN
Remove pasted formatting by default (fixed)
From 2 comments
When you paste something it keeps the formatting, intended?
PieUser on HNFixed, formatting is now removed
kahole on HN
Questions
How to handle infinite loops in browser code execution
From 2 comments
Do you, or the broader community, have any ideas about solving infinite loops? I'm on mobile so I can't test this at the moment, but I imagine that while(1) crashes the tab. What…
angleofrepose on HNI am aware of multiple hacky solutions, such as loop detection and adding timeouts. This fails in most non-trivial creative coding applications due to long running code. I'm…
angleofrepose on HN
Why build this when JavaScript REPLs already exist
From 1 comment
Not to be rude (I actually like it), but why build your own instead of using one of the many JavaScript REPLs already available?
colejohnson66 on HN
Alternatives named
Starboard notebook
From 2 comments
I love how simple and effective this is. I'm also building a web-based literate programming environment called Starboard[1] that's probably a hundred times the amount of code…
protoduction on HNOn Starboard[0] I approached this by sandboxing the notebook code in an iframe on a different origin. This sandboxing has to be done anyway to prevent XSS. If you type…
protoduction on HN
Observable notebooks
From 1 comment
Hi, yes! I like your project. I chatted about similar things on your launch post here. You also address this explicitly on your product which I appreciate. What I'm getting at is…
angleofrepose on HN
Stopify JS-to-JS instrumentation
From 2 comments
https://www.stopify.org/
emmanueloga_ on HNTo add to this comment, Stopify is a JS-to-JS compiler that instruments sync JS code to make them interruptible at set points. The paper [0] can explain it better than I ever…
rng_civ on HN
Easylang online IDE
From 1 comment
I have made something similar (https://easylang.online/ide/). It is a language of its own, which is compiled and interpreted by WASM. The problem with hanging in endless loops is…
chkas on HN
Plain contenteditable data URL scratchpad
From 1 comment
The simplest scratchpad, which works in Firefox and Chromium at least. ``` data:text/html,<html contenteditable> ```
drran on HN