my blog. for you.

Let’s talk digital.

I’m an independent IT consultant and entrepreneur in the Internet and software business. I’m interested in design, enterprise applications, web apps and SaaS products. I design and develop business solutions and applications. I help companies in terms of software quality and knowledge transfer, e.g. with Angular and Spring Boot.

Manfred Steyer @ AngularConnect 2018: Architectures for huge Angular based enterprise applications

How to Subscribe to Multiple RxJS Observables in Angular

Cory Rylan, Google Developer Expert and instructor at Angular Boot Camp wrote this article on subscribing to multiple observables in Angular components. In this article, Cory explains how to use the RxJS forkJoin and combineLatest operators in conjunction with Angular's *ngIf directive and the AsyncPipe in order to consume asynchronous data provided by multiple RxJS Observables.

Sunday January 6th, 2019 by Bjoern in Front End Development, Software, Web Applications

Michael Hladky @ AngularConnect 2018: RxJS schedulers in depth

Sunday December 30th, 2018 by Bjoern in Front End Development, Software, Web Applications

Stefan Baumgartner & Katrin Freihofner @ AngularConnect 2018: Automating UI development

Sunday December 23rd, 2018 by Bjoern in Front End Development, Software, Web Applications

State of JavaScript Survey: 2018 Edition – Criticism from an Angular Perspective

Recently, the results of the 2018 edition of the State of JavaScript survey have been published. As usual, the report comes with handy categories such as front-end, data layer, testing or mobile. While I very much support the idea of creating a yearly survey of the JavaScript landscape and this survey in particular, which I have been supporting since its inception, there's a major issue with this year's edition: In contrast to its previous editions the survey results lump together (or at least the ...

Sunday December 2nd, 2018 by Bjoern in Enterprise Software, Front End Development, Software, Web Applications

Dependency Management for Angular Unit Tests Using TestModuleMetadata

Since its inception it's always been one of the eminent design goals of Angular (and AngularJS before it) to make JavaScript applications easily testable and bake unit and E2E testing right into the development process. While the Angular team certainly has succeeded at this there's still the occasional snag you hit when writing unit or end-to-end tests. For the most part, the testing experience with Angular is terrific and testing JavaScript codebases has come a long way but of course there's always ...

Sunday November 4th, 2018 by Bjoern in Front End Development, Software, Web Applications

Tool Suggestion – NGD: Angular Dependencies Graph

When working on a larger codebase knowing about the dependencies between components is crucial, particularly so when you're trying to understand how an existing application works. NGD - Angular Dependencies Graph (part of the Compodoc documentation suite for Angular) is a tool that - as the name suggests - generates dependency graphs (i.e. boxes and arrows) for Angular applications. Dependency graphs give you a high-level overview of an application's architecture and hence are a great first step in understanding how an application ...

Sunday October 7th, 2018 by Bjoern in Front End Development, Software

RxJS: Observables, Observers, Subjects …

When developing web applications - or in fact any kind of application that involves interaction via a user interface - we inevitably have to deal with asynchronous events, perhaps even streams of such events, e.g.: mouse clicks asynchronous HTTP calls and subsequent display of data push notifications Because events are such an essential part of both the feature set and the user experience of many, if not even most, user-facing applications frameworks such as Angular treat them as first-class citizens and provide developers with ...

Sunday September 2nd, 2018 by Bjoern in Enterprise Software, Front End Development, Software, Web Applications

JSON Schema to TypeScript declarations: Keeping Client and Server Models in Sync with Spring Data REST and Typescript

With web applications a separation between client and server is commonplace nowadays: While the server (also often called back-end) deals with the underlying model, data storage and the predominant part of the business logic, the user interface and user-facing behaviour in general is realised with JavaScript, HTML and CSS on the client (also referred to as front-end), i.e. the user's browser. Frequently, frameworks such as Angular are used in order to facilitate development and make code easier to read and generally more ...

Sunday August 12th, 2018 by Bjoern in Enterprise Software, Front End Development, Software, Web Applications

Miriam Suzanne – Don’t Use My Grid System (Or Any Others) @ beyond tellerrand Düsseldorf 2018

Sunday July 29th, 2018 by Bjoern in Design, Front End Development, Software, Web Applications

Björn Wilmsmann

my blog. for you.

Let’s talk digital.