jspm | Pattern matching implementation in JS | Functional Programming library

while experimenting with deno to get readings from arduino, i got stuck on proper usage of serialport lib. i tried the following:

according to an article packages from pika.dev can be used. but from pika i get:
However, no web-optimized "module" entrypoint was found in its package.json manifest.

also using jpsm.org didn't work either:

I having trouble configuring my karma.conf.js file to do unit test on ES6 via Webstorm, using babel and Karma.

What I am trying to do here is to run the test on '/test/BaseElement.test.js' When launching the test, i am receiving the following error:

I have made an angular 1 project with typescript using this yeoman generator: https://github.com/FountainJS/generator-fountain-systemjs
It uses SystemJS and jspm to get dependencies but npm for type definitions (using DefinitelyTyped repository).

I have been struggling these last few days trying to import moment type definitions. I have installed moment using jspm, and i have discovered that it comes with its own type definitions, so if you call the command npm install @types/moment --save-dev you only get a stub and a deprecation warning

This is a stub types definition for Moment (https://github.com/moment/moment). Moment provides its own type definitions, so you don't need @types/moment installed!

Now, i don't know if it's my editor, project or typescript settings or really a typescript issue, but i can't seem to be able to properly import moment's type definitions.

if i do either import moment from 'moment'; or import * as moment from 'moment'; i get this error on my editor (atom with atom-typescript, but i have the same error on Visual Studio Code) Cannot find module 'moment'.

Despite this error, when i build my application it works fine (calling moment functions works).

I have tried a lot of solutions i found on the internet (apparently, importing type definitions from moment is a common issue) but none worked. Yesterday I managed to make it work by manually creating the directory moment inside node_modules/@types and put moment.d.ts inside it (i had to rename it index.d.ts though).

Since i didn't really like this solution, i wanted to at least create a types folder i could put stuff into without having to modify node_modules structure. So i created a folder custom-types and put the moment folder with types definitions there, then added custom-types into tsconfig.json, i thought this would've worked fine but actually the error reappeared...

Now i'm out of ideas, and i don't really know what else to try.

This is my current tsconfig.json (in the last attempt to make things work i have added the custom-types folder with different paths, although it's on the same level as the node_modules folder and tsconfig.json file)

Hello all, I have install jspm globlly and locally at my-project directory, but when I type jspm init to the console it returns that 'jspm' is not recognized as a command. I have stuck on for more than one day, how can I solve this, thank you

N.B. I have researched for it immensely but i can't solve it

I am set the project in my local mac, and i want to run it with "gulp watch", i do it before and its work fine for me but now when i do "gulp watch" and go to browser i got an error by browser.

GET http://localhost:9001/dist/aurelia-bundle-8d7cabedaf.js 404 (Not Found)

I already tried to do

1. delete the node_modules folder.
2. delete nodejs globally and reinstall him again.
3. reinstall node_modules and jspm_packges.
4. change nodejs versions to 6/8.
5. reinstall gulp and jspm.

Any ideas about the following errors?

Now that all modern browser support javascript modules, I'm trying out importing code right in the browser. We can get npm modules from unpkg.com, and I've found the jspm project, which wraps npm modules into a format that can be consumed by the browser.

But I'm still having problems, most notably with RxJS. RxJS, as of version 6, recommends you import constructors and operators like this:

I'm trying to use jest in my JSPM project.

My jspm.config file looks like this:

I am trying to define build script for my production versions.

Below is project structure, all projects are java plugin.