is there an :autorun equivalent for :node-script? I want that in development, executing shadow-cljs watch :some-build will automatically execute the resulting node script for the REPL runtime

there is not but can trivially achieve that with other tools, eg. https://www.npmjs.com/package/chokidar-cli

but very likely that you do not want :node-script for the REPL at all

just use shadow-cljs node-repl instead. that just gives you the REPL without any build config or so

I don't want just the REPL, I work on a project and want the project's runtime. I might misunderstand how the REPL work, but iiuc in order to work in my files, ns, functions and data I need to build, run and then connect to the script's\lib runtime, correct?

no

:node-script builds your entire project and produces a "executable" which you can then run via node

node-repl just gives you a REPL, in which you can (require 'your.code) and run it, with no executable or other "output" apart from the REPL

So executing the output code is not necessary at all for dev? Mostly I just want node\browser repl and start hacking? I'm guessing a real browser is required only for experimenting with real application...

well that all depends on what you are building

for example with :node-script you might be doing something that takes command line arguments, executes and exits

having a REPL here would keep the process alive and would actually hinder the development

so you'd maybe have the :node-script in addition to the node-repl

for browsers you might want to have actual HTML you generate yourself

or embed in other ways in the HTML

browser-repl only gives you a very basic HTML, that for example you can't include CSS into

yes, you can just use browser/node-repl to start hacking. whether or not that makes sense depends on what you are building

REPLs also don't automatically hot-reload and only builds do that

Hallo. I am trying to use the npm package https://www.npmjs.com/package/leader-line. It just defines the constructor LeaderLine. The source for leader-line.min.js looks like this: var LeaderLine=function(){...}(); But how do I use it in my ClojureScript code? (:require ["leader-line" :as leader-line]) gives me a JavaScript object, but it is no function and it has no .-LeaderLine property.

@witek can't say. what does the object look like?

JavaScript Console shows:

{}
[[Prototype]]: Object
constructor: ƒ Object()
hasOwnProperty: ƒ hasOwnProperty()
isPrototypeOf: ƒ isPrototypeOf()
propertyIsEnumerable: ƒ propertyIsEnumerable()
toLocaleString: ƒ toLocaleString()
toString: ƒ toString()
valueOf: ƒ valueOf()
__defineGetter__: ƒ __defineGetter__()
__defineSetter__: ƒ __defineSetter__()
__lookupGetter__: ƒ __lookupGetter__()
__lookupSetter__: ƒ __lookupSetter__()
__proto__: (...)
get __proto__: ƒ __proto__()
set __proto__: ƒ __proto__()

so it has a constructor

so probably just (:require ["leader-line" :as leader-line]) and (leader-line.), ie. constructing a new instance?

This fails with Uncaught TypeError: module$node_modules$leader_line$leader_line_min is not a constructor

maybe its only intended to be used via a script tag

doesn't appear to be a proper npm package otherwise