You are at the finish line. Your hard work has paid off and that wonderful, cool, hip mobile app is ready to conquer the world. Congratulations! …

Setup Expo and Jest Open your terminal. Install the expo command-line interface with npm install -g expo-cli Initialize an Expo project with the init command. And access the folder in your terminal. Install the dependencies and Pods. expo init -- template blank detox-test-expo cd detox-test-expo expo install Install the Expo-specific package for Jest. npm…

This is it. The moment has come. The big feature that you have worked on for the past few months, and the company has planned for the past few years, has finally been finished. You take a small sip of champagne. Then you get a call from the tech lead…

Node.js is an open-source run-time environment that allows JavaScript to be executed on the server-side. Since its initial release in May, 2009 by Ryan Dahl, Node.js has grown vastly in popularity. In fact, ColorLib lists Node.JS as one of the best languages to learn in 2019. One of the reasons…

Since its introduction in May 2013, the React framework has gained a steady popularity as a single, streamlined framework for developing user interfaces. When predictably managing the state container is required, Redux is one of the most popular libraries. In this tutorial, I will take you step by step to…

Brief History of React Native React Native’s development started at an internal hackathon in Facebook in the summer of 2013. The first public preview came in January 2015 at React.js Con. …

React is a declarative, efficient, and flexible front-end JavaScript library for building user interfaces (UI). It was deployed first on Facebook’s newsfeed by Jordan Walke, a software engineer at Facebook. He was influenced by XHP, an HTML component framework for PHP. Currently, React.js …

The DOM stands for Document Object Model. The DOM provides a way of manipulating HTML and XML documents. We call this “way of manipulating” things an Application Programming Interface, or API. …

a|| = b is a “conditional assignment operator”. It is considered to be a shorthand for a||a = b. There is a common misconception that only if a is defined and evaluates to false, then the right-hand side is assigned to a. However this is only partially true. …