December 3, 2018

Nested Forms in Angular

This Article is based on Kara Ericksons talk about “Angular Forms” at the Angular Connect 2017. https://www.youtube.com/watch?v=CD_t3m2WMM8&amp=&index=15 I am going to give you a quick example to get started with nested Forms. TL;DR Extract the HTML in new Component Inject ControlContainer in new Component Access the Form via ControlContainer.control pass the parent Form into the […]
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theCodeCampus
Developer at thecodecampus </>


December 2, 2018

Building Flutter on Gitlab – Flutter Android Image

When it came to building a Flutter MVP application, I was very dissatisfied with the existing Flutter Images. They were outdated by many many versions. Therefore I created an image reflecting the current version of Flutter. The source is on Github, you can find the Image ‘kattwinkel/flutter-android’ on Docker Hub. A minimal .gitlab-ci.yml file might just […]
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theCodeCampus
Developer at thecodecampus </>


Material 2: Sticky Footer with Mat Sidenav

My guess is your using Angular in combination with Angular Material and you desperately need a sticky footer, ideally, in a variable height. No need to look any further. This article will provide you with a basic solution for given circumstances. This article was updated and tested for Angular 7 and Material 2 Version 7.1.1 […]
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theCodeCampus Autor Christian Heitmann

Christian Heitmann
Developer at thecodecampus </>


November 27, 2018

Improve performance with virtual scrolling in Angular – HowTo

Since the release of Angular 7, the Angular CDK includes a feature that can improve the performance of your application dramatically. Virtual scrolling is highly beneficial for dealing with a lot of data in tables or lists. You can improve performance for large lists in Angular with the Angular CDK virtual scrolling component. What is […]
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theCodeCampus Autor Kai Henzler

Kai Henzler
Developer at thecodecampus </>


November 21, 2018

Call a method on @Input() change

Problem You probably already run into this issue. Inside a component, you want to react to the change of an @Input() value e.g. by calling a method of your component. For example we have get an @Input() filter: string from our parent component and if the @Input() changes, we want to update our data in […]
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theCodeCampus
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November 20, 2018

Building an Angular App in parallel for multiple languages

Problem When using the built-in Angular Internationalization (i18n) the Angular guide tells you in detail what you have to do to set up your application to support multiple languages. The guide lacks the details on how to properly integrate the build into a common web application deployment workflow. In this brief blog post I’m going to […]
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theCodeCampus Autor Kai Henzler

Kai Henzler
Developer at thecodecampus </>


October 27, 2018

Install Docker on Ubuntu 18.10

Currently there is no official release of Docker available for Ubuntu 18.10. Therefore you’ll run into errors like this one: 

But there is already a way to utilize the test repo to have Docker for Ubuntu 18.10:

Before you apply this fix, please check if the official resources have been updated at: https://docs.docker.com/install/linux/docker-ce/ubuntu/

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theCodeCampus
Developer at thecodecampus </>


October 5, 2018

Angular 2 – Set Class of parent element with @HostBindings

With the @HostBinding() annotation, Angular gives you a useful tool to handle manipulations of css classes of parent Elements. The advantage is quite clear, the required logic remains in the components class and is not set in the template file. This makes it easier to test and improves the readability of the template file. In […]
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theCodeCampus
Developer at thecodecampus </>


July 26, 2018

Locally serving the build distribution of an Angular SPA

tl;dr Use Node Package local-web-server and its command ws with the spa flag like this: ws --spa index.html While developing an Angular based SPA usually you will use the Angular CLI as build too. The CLI has an integrated development server which is able to handle client-side routing. So whenever a reload happens and you’re […]
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theCodeCampus
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July 18, 2018

Angular, Preserving Query Params and Google AdWords

… and how all this leads to an incorrect source of traffic in Google Analytics and incorrect conversion attribution.   The situation is as follows: On www.thecodecampus.de we run an Angular 6 page. We advertise our product with Google AdWords. If a visitor comes via Google AdWords, the URL is appended with a glcid and several […]
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theCodeCampus
Developer at thecodecampus </>