Hiring developers is often presented as a question of evaluation. How good is the coding challenge?Are the interview questions sharp enough?Does the culture interview really catch red flags? After hiring many developers, I’ve learned something different: Evaluation is not the hard part.Operations are. What breaks hiring processes at scale is rarely judgment.It’s friction.And friction quietly […]
The following tutorial applies to a Raspberry Pi 4 running Ubuntu server, check this page to read more about Ubuntu server on RPi. We are going to build the ela and ela-cli binaries to run them on the RPi, for more information you can check the official GitHub repository of the Elastos node. Let’s start […]
TL;DR you can already access the finished project on GitHub Mobile app: https://github.com/ademcan/react-native-stripe Back-end: https://github.com/ademcan/stripe-backend This tutorial is also available as a video format on YouTube. I was planning this blogpost since quite some time, and I thought now was the perfect time as some people were asking about it on Twitter. Stripe is a […]
Today’s topic is ExpressJS, a web framework for NodeJS. You can use ExpressJS if you need any back-end program, for example for a web-app or a REST API. In this article, I will take you through the installation of ExpressJS and the creation of a very simple project. 1. Creating an empty nodeJS project Let’s […]
TLDR; be sure that your node is using the additional storage to write the blockchain data there As Enter Elastos we are running 3 Elastos supernodes (Titan, Ganymede and Callisto). To have a better overview of the ecosystem and be ready in case of issue we decided to use different approaches to run the different […]
Photo by unsplash-logoVincent Yee on Unsplash Controlling the appearance of the keyboard is a big headache for mobile app developers. The keyboard should appear smoothly and fit in the user interface without blocking any element. Several solutions exist in React Native to deal with that issue: one can use the KeyboardAvoidingView component or one of […]
The definition of linting on Wikipedia is pretty clear :”Lint, or a linter, is a tool that analyzes source code to flag programming errors, bugs, stylistic errors, and suspicious constructs”. Photo by unsplash-logoJames Pond on Unsplash By using a linter in your React Native project you’ll be able to catch code errors early on and […]
“An email subscriber is worth 100x twitter or LinkedIn followers or whatever other stuff is out there. An email = a real channel” Andrew Chen A newsletter is an essential part of your online business/blog/project. It helps you reach your auditors more easily and keep them informed about any update regarding your project. I recently […]
I recently struggled a lot to be able to upload/download images to/from AWS S3 in my React Native iOS app. I wanted to allow users to upload images to S3 and access some of the images from other users… I have a server running on Express (nodejs) and here is how I solved my problem. […]
As bioinformaticians, we often have to deal with computer clusters. There are different computer cluster systems available such as SGE, LSF… Although the main idea is the same, the commands used to submit a job might be slightly different. In this article I will quickly show how to submit a job to an SGE (Sun […]