JavaScript Immediately Invoked Function Expressions (IIFEs) are functions that are executed when they are initialized. An IIFE (pronounced “iffy”) can be initialized or defined to achieve a certain purpose. In this tutorial, you will learn about use cases for IIFEs and the benefits of using them over traditional functions. You will also write tests for your functions and integrate CI/CD for these tests.
CircleCI notification orbs were built to deliver messages to the appropriate channels when a build is successful or when it fails. This helps everyone involved in a project stay up-to-date with the status of the latest build. In this tutorial, you will explore and implement notifications sent to a Slack channel and also sent via SMS. To accomplish this task, you will make use of the Slack and Twilio orbs from the CircleCI orb registry.
For the last few years, many development teams have replaced traditional data centers with cloud-hosted infrastructure. Cloud adoption continues to grow, and teams are updating applications to leverage cloud-based services. But for many organizations, adopting a single cloud provider to host all their applications and data can put their business at risk. To reduce these risks, some organizations are distributing resources across multiple cloud providers in a specifically designed way.
Your software development team has an enormous number of tools available to them. Some older tools are being used in new ways, which has inspired the creation of more new tools to choose from. For example, JavaScript has grown from a language used to add interactivity on websites to a full-stack language for both frontend and backend needs. JavaScript has paved the way for Express, Nest.js, and many others.
Development operations (DevOps) combines best practices, cultural transformation, and tools to improve your organization’s software development and delivery velocity. Teams can employ DevOps regardless of an organization’s size and continuously deliver new software features, updates, and patches to enhance software quality and customer experiences.
The Serverless framework is an open-source framework written in Node.js that simplifies the development and deployment of AWS Lambda functions. It frees you from worrying about how to package and deploy the application to the cloud, so you can focus on your application logic. Serverless applications are distributed by design, so good code coverage is vital, and should include unit testing.
