Why is TypeScript so popular among Angular developers and not among React folks?

How do you minimize the differences between the development and production environments?

Node foundation moves ExpressJS in-house. What could this mean for the future of Node community?

How do you measure performance of a JavaScript animation?

To be very honest, I sometime get afraid before creating any JavaScript animation. How do you make a guess that a particular animation will work smoothly irrespective of the system the user is using.

How to get started with shell scripting?

I want to start automating tasks for myself. I figured out the easiest way to do so is to write shell scripts. I would like to know some tips/resources on how to learn it.

I want to test my ExpressJS controller code. How do I test the database calls?

I am using MongoDB as database and mongoose as the ODM. I want to test my controller code but don't want to use the database for testing, how can I mock the database and database calls? How do you generally test your controller code.

What are some essential security measures I should check for while developing a web application?

I have proper checks for CSRF and XSS. What are other security measures I should place to make my app more secure.

I want to be really good at DevOps, where should I begin and how should my learning track look like?

My goal is to be able to do all kinds of operations on server and manage it. I am not sure where and how should I approach towards this goal. Also, What are the skills that a devops person should have?