Tech Article - hackajob Insider

Testing your Django Application

When writing any kind of software, it’s crucial to test the code and therefore the application you’ve created.

Getting Started with Expo

If you’re keen to learn all-things React Native (including the types of things you can build), without the need to deal with dependency settings, links and compatibility issues; we recommend giving this tutorial a try.

Java

Concurrency and Improvements in Java 8: Part 2

Discover how to use the CompletableFuture class in Java.

Python

How to Deploy a RESTful Application with CRUD Endpoints

Learn how to deploy a RESTful application with CRUD endpoints.

Java

Type and Repeatable Annotations Explained

The last in our ‘Improvements in Java 8’ series, in this article we’ll be concentrating on both Type and Repeatable annotations in detail and explaining their benefits.

ReactNative

Using the KeyboardAvoidingView in React Native

This week, we’re going to be learning how to use and implement the KeyboardAvoidingView.

ReactNative

Learn to use Firebase with React Native: Part 3

If you’ve been following along so far, you should have built an app that can operate without an internet connection and is connected with Firebase. In this tutorial, you’ll be working on CRUD operations with Firebase; starting with learning how to insert data.

Java

Concurrency and Improvements in Java 8: Part 1

When Java 8 was introduced, lambda expressions and the Stream API were among the most talked about features in this release. However, Java 8 has also added a class called ‘CompletableFuture’ in the Concurrency API...

ReactNative

Learn to use Firebase with React Native: Part 2

In Part 2 of this tutorial, you’ll be working on a connection between your app and Firebase itself.

django

How to Dockerise your Django Application

According to most, Microservices is the hot new thing in application architecture. So what’s the fuss?

ReactNative

Learn to use Firebase with React Native

Whilst you can deploy an application using Heroku or various AWS services, at hackajob, believe that Firebase is one of the easiest and most documented platforms to integrate with any app.

Java

File IO in Java 8: The Rundown

At hackajob HQ, we’re big fans of the improvements made in Java 8. In this article, we’re going to be exploring some of the improvements made to File IO, including reading and writing a file, as well as listing the contents of a directory.

Java

Using the Optional Feature in Java 8

At hackajob HQ, one of our favourite features in Java 8 is the Optional Feature. Helping to avoid unexpected errors and write clean code, in today’s article, we’ll be covering it in detail.

ReactNative

How to Create a Launch Screen & Icons

Whilst we seem to have multiple tutorials available on our blog that detail how to develop a brand new app from scratch, we feel it’s important to take some additional time and learn what to do with an app after it’s been created; such as creating a launch screen and configuring launch icons.

Python

Creating a Flask App with SQLAlchemy, PostgreSQL, and Alembic

Flask is one of the most popular web frameworks for Python. A key contrast between Flask and Django (the other framework) is that the latter comes with several out-of-the-box tools that make configuration much quicker.

ReactNative

Using Custom Fonts in React Native

Follow along and learn how to add Custom Fonts to an existing React Native project.

Java

Collectors in Java 8

In our previous Java 8 article, we spoke about the benefits of the Collection API. In today’s write-up, we’ll be taking a closer look at Collectors and how to use them in Java 8.

ReactNative

A Brief Introduction to React Native Hooks

If you’ve been keeping up with all-things React Native, you’re likely to have heard about ‘hooks’. And in all honesty, there’s a big hype about about them.

Python

How to Use Inbuilt Modules in Python

At hackajob HQ, our internal engineers often debate which coding languages are best and for our back-end team, Python is a subject that comes up regularly. In fact, they believe that Python’s inbuilt modules make their lives as programmers so much easier...

Java

The Benefits of the Collection API in Java 8: Part 2

In part one of this article, we covered the ‘forEach’ method, the ‘Collection.removeIf’ method, the ‘Iterator.forEachRemaining’ method and the ‘SplitIterator’ interface. For part two, we’ll be looking at the improvements made on both the ‘List’ and ‘Map’ interfaces.

ReactNative

Creating a Movie-Themed List App: Part 2

Welcome back to the second part of our movie-themed list app tutorial. If you missed what we worked on last time, make sure to take a look before continuing...

django

The Importance of Creating Clean Code Architecture

Before we begin discussing the importance of creating clean code architecture, we want to stress that we don’t believe that the concept of clean architecture actually means making your programme ‘clean’.

Python

Searching and Sorting Algorithms in Python

There’s a common joke that software engineers always use the word ‘algorithm’ when they’ve done something they can’t explain. Although it has a pretty simple meaning, such is the mystic associated with the term...

ReactNative

Creating a Movie-themed List App: Part I

Today we’re going to be building a fully functional ‘movie-themed’ app. Using some concepts shown in our previous tutorials such as Lists, Redux, React Navigation and Swipe buttons, we’ll be implementing this app in three parts:

ReactNative

How to Create a Progress Indicator using React Native

Probably one of the most important parts of any app, a Progress Indicator is integral to the overall user experience.