Nach exakt 357 Tagen werden wir wieder ein Bärner JS Talk in den Büros von Lambda durchführen mit 2 spannenden Themen. Anmelden kann man sich über den folgenden Link [https://www.meetup.com/de-DE/Barner-JS-Talks/events/280067964/](https://www.meetup.com/de-DE/Barner-JS-Talks/events/280067964/)


### WebBluetooth - the missing link - Nico Martin

With Progressive Web Apps and the Project-FUGU, the web is increasingly becoming a full-fledged platform for complex applications.
But what has been missing for a long time is the possibility to communicate with devices in the periphery. With WebBluetooth, this gap has now been closed, which makes it possible to interact with light bulbs, fitness trackers or even drones directly via a web application.
Sounds pretty cool, and it is. But those who are used to open and transparent transmission protocols will inevitably come up against a few hurdles.

Watch the video of the talk: [https://youtu.be/zIvRISiPN90
](https://youtu.be/zIvRISiPN90)

**Speaker bio**

Nico Martin is a self-taught and self-employed web-developer and Google Developer Expert in Web Technologies from Switzerland focused on modern frontend development. One of his great passions is to play around with new technologies and share his learnings in articles, workshops or talks.


### The Best Way To Architect Your Angular Libraries - Tomas Trajan

Angular libraries are very common, almost every Angular project uses some of the available open source solutions - be it for state management, authentication or a component library. As the amount of Angular applications grows it is almost inevitable that we're going to introduce some internal libraries to take care of repeated business logic or even an organization specific look and feel with custom component framework!

In this talk we're going to explore how to architect Angular libraries with the help of sub-entries so that our consumers can benefit from the smallest possible bundle size and our teammates from great developer experience when adding additional components and services to the library itself!

Watch the video of the talk: [https://youtu.be/2vHJ3_Om_gU](https://youtu.be/2vHJ3_Om_gU)

**Speaker bio**

Tomas is a Google Developer Expert for Angular & Web Technologies working as a consultant and Angular trainer currently empowering teams in Swiss enterprise organizations by implementing core functionality and architecture, introducing best practices and sharing know-how and optimizing workflows.

Tomas always strives to provide as much value as possible for both the customers and the wider developer community which is underlined by a long track record of popular articles, talks and open source projects.

His most recent endeavor was creating Omniboard - the best tool for enterprise lead software engineers and architects that helps them to get an overview to drive change by querying and tracking all their code bases!

[https://omniboard.dev/](https://omniboard.dev/)

[https://tomastrajan.com/workshops/angular-mastery](https://tomastrajan.com/workshops/angular-mastery)

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Software Entwickler, Projektleiter

BärnerJS Talk #5 - WebBluetooth und Angular Libraries

Dieses Jahr war Lugano-Paradiso unser Zuhause für eine Woche.

Während dieser Zeit widmeten wir uns individuellen Themen um entweder unser Wissen zu vertiefen, oder um uns neues Wissen anzueignen.  

Die Themen waren auch in diesem Jahr sehr unterschiedlich und vielseitig, hier eine kleine Übersicht zu unseren diesjährigen Projekten:  

- Studium Angular serverside rendering mit Universal

- Qualitätskontrolle von Bildern mit machine learning

- Ein Proof Of Concept für ChestnutJS erarbeiten, die Auto-Generation von CRUD Admin Ansichten von io-ts Runtime-Types und Knowhow von Angular Animations vertiefen

- Performance Analyse für Abfragen mit dem Elasticsearch Kibana Interface und Provisionierung von Servern via Zentraler Konfiguration anhand von Ansible

- Einfache Angular singlepage Applikation für ein Seifenkistenrennen (Ausbildungsprojekt)

Nebst den lehrreichen Stunden vor dem Bildschirm, genossen wir auch die kulinarischen Highlights des Tessins.

Die Sportskanonen unter uns hatten natürlich die Joggingschuhe dabei und liefen über den Mittag gerne mal auf den San Salvatore.

Mit frisch aufgestocktem Wissen widmen wir uns nun wieder top motiviert unseren aktuellen Kundenprojekten und freuen uns schon auf die Hackweek 2020.

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Hackweek 2019

Der nächste BernerJS Talk findet am 8. Oktober 2019 in den Büros von Lambda statt Die folgenden Themen werden präsentiert

**Advanced Union Types in TypeScript**

When programming how often do you have a variable that could have more than one possible type or structure?

It could be more often than you think!

A simple example is a variable that either holds data or does not (e.g. a nullable type).

A more advanced example is the status of an API call, which could be:

• ‘Loading’

• ‘Success’ (with a API result data structure)

• ‘Error’ (with an Error detail data structure)

A type that can have more than one type of structure is a Union Type.

What’s the best way to handle union types? How can use union types in a TypeScript to ensure strict type safety thus giving us a stronger guarantee that our code is correct?

This talk will introduce Union Types, explain the building blocks that are required to work efficiently and safely with unions, and then introduce a couple of libraries which provide us with convenience and consistency when declaring and using union types.

An (intended) side-effect of this talk might the planting of a seed of interest in the world of Functional Programming (although union types are perfectly valid outside of this paradigm).

Wayne is a co-founder and developer at Lambda IT with a particular interest in exploring programming paradigms which assist in ensuring code quality.

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**10 things every Angular Developer should know about zone.js**

Zone.js is a library which is used in Angular to handle change detection. Most of the time it works really well - however if problems with zone.js occur, dealing with them can be a really frustrating experience. In this talk I want to share helpful things that I learned while deep-diving into zone.js and show you some problems you can run into and how to deal with them.

Matthias Junker (Software Catering, https://twitter.com/matt_junker) works a as Frontend Architect at "die Mobiliar".

[Details und Anmeldung](https://www.meetup.com/de-DE/Barner-JS-Talks/events/264743525/)

Fokus - fp-ts

Aktuelles zu fp-ts

BärnerJS Talk #5 - WebBluetooth und Angular Libraries

Hackweek 2019

BärnerJS Talk #3

Fokussiert auf fp-ts:

Wayne Maurer

Firmengründer, Software Architekt und Entwickler