Deno is a runtime for JavaScript applications. Deno is written in Rust, which changes the security properties of it. Parts of Deno are also written in TypeScript, which are causing problems in the compilation and organization of Deno. Elio Rivero is an engineer who has studied Deno and TypeScript, and he joins the show to talk about the newer JavaScript runtime and the issues caused by TypeScript. Sponsorship inquiries: sponsor@softwareengineeringdaily.com The post Deno and TypeScript with Elio Rivero appeared first on Software Engineering Daily.

WebAssembly allows for the execution of languages other than JavaScript in a browser-based environment. But WebAssembly is still not widely used outside of a few particular niches such as Dropbox and Figma. Nicolo Davis works on an application called Boardgame Lab, and he joins the show to explain why WebAssembly can be useful even for a simple application. Nicolo also shares his reflections on TypeScript, Rust, and the future of web development. He talks through the client/server interaction, performance, error handling, and the process of an actual migration. Sponsorship inquiries: sponsor@softwareengineeringdaily.com The post WebAssembly Migration with Nicolo Davis appeared first on Software Engineering Daily.

Users do not use web applications in the way that you might expect. And it is not easy to get the data that is necessary to get a full picture. But a newer API within browsers does make this more possible by capturing DOM mutations.  The change capture of these DOM mutations can be stored for replay in the future. After being stored, this change capture can be retrieved and replayed. That allows for comprehensive frontend monitoring, which has been built into a product called FullStory. Michael Morrissey is the CTO of FullStory, and he joins the show to talk about how session capture works, and the architecture of FullStory–how sessions get saved, stored and retrieved. In a previous show we talked about LogRocket, a product which does something similar. Sponsorship inquiries: sponsor@softwareengineeringdaily.com The post Digital Experience Analytics with Michael Morrissey appeared first on Software Engineering Daily.

The modern release workflow involves multiple stakeholders: engineers, management, designers, and product managers. It is a collaborative process that is often held together with brittle workflows. A developer deploys a new build to an ad hoc staging environment and pastes a link to that environment in Slack. Other stakeholders click on that link, then send messages to each other in Slack, or make comments on the pull request in GitHub. This workflow is far from ideal. Collaborating around pull requests can be made easier with a dedicated set of tools for sharing and discussing those pull requests. This is the goal of FeaturePeek, a system for spinning up dedicated pull request environments, creating screenshots and comments, and reimagining the lifecycle of the release workflow. Eric Silverman is a co-founder of FeaturePeek and he joins the show to discuss release management, the interactions between different stakeholders, and the development of his company. Much like the previous show about Postman, in which we explored how API management has become a ripe space for collaboration, the same is true of pull requests. Sponsorship inquiries: sponsor@softwareengineeringdaily.com The post Pull Request Environments with Eric Silverman appeared first on Software Engineering Daily.

Originally published July 6, 2017. We are taking a few weeks off. We’ll be back soon with new episodes. React Native allows developers to reuse components from one user interface on multiple platforms. React Native was introduced by Facebook to reduce the pain of teams who were rewriting their user interfaces for web, iOS, and Android. Nader Dabit hosts React Native Radio, a podcast about React Native. Nader also trains companies to use React Native through his company React Native Training. In this episode, we explore what a developer can and cannot do with React Native, when a developer needs to use native APIs, and some speculation on the future of React Native. The post React Native Ecosystem with Nader Dabit (Summer Break Repeat) appeared first on Software Engineering Daily.

Originally published November 21, 2019. We are taking a few weeks off. We’ll be back soon with new episodes. HTTP is a protocol that allows browsers and web applications to communicate across the Internet. Everyone knows that HTTP is doing some important work, because “HTTP” is at the beginning of most URLs that you enter into your browser. You might be familiar with the request/response model, and HTTP request methods such as GET, PUT, and POST. But unless you have had a reason to learn more about the details of HTTP, you probably don’t know much more than that. Julia Evans is a software engineer and writer who creates Wizard Zines, a series of easy-to-read online magazines that explain technical software topics. Julia’s zines include “Linux Debugging Tools”, “Help! I Have A Manager!”, and recently “HTTP: Learn your browser’s language”. Her zines are a creative, innovative format for describing the world of software engineering while also exploring her own artistic pursuits in writing, design, and illustration. Julia was previously on the show to discuss Ruby profiling, and she returns to the show to discuss HTTP, as well as her creative process and goals with Wizard Zines. The post HTTP with Julia Evans (Summer Break Repeat) appeared first on Software Engineering Daily.

Over the last 5 years, web development has matured considerably. React has become a standard for frontend component development. GraphQL has seen massive growth in adoption as a data fetching middleware layer. The hosting platforms have expanded beyond AWS and Heroku, to newer environments like Netlify and Vercel. These changes are collectively known as the JAMStack. With the changes brought by the JAMStack, it raises the question: how should an app be built today? Can a framework offer guidance for how the different layers of a JAMStack app should fit together? RedwoodJS is a framework for building JAMStack applications. Tom Preston-Werner is one of the creators of RedwoodJS, as well as the founder of GitHub and Chatterbug, a language learning app. He joins the show to talk about the future of JAMStack development, and his goals for RedwoodJS. Sponsorship inquiries: sponsor@softwareengineeringdaily.com The post RedwoodJS with Tom Preston-Werner appeared first on Software Engineering Daily.

Web development has historically had more work being done on the server than on the client. The observability tooling has reflected this emphasis on the backend. Monitoring tools for log management and backend metrics have existed for decades, helping developers debug their server infrastructure. Today, web frontends have more work to do. Detailed components in frameworks such as React and Angular might respond quickly without waiting for a network request, with their mutations being processed entirely in the browser. This results in better user experiences, but more work is being done on the client side, away from the backend observability tools. Matt Arbesfeld is a co-founder of LogRocket, a tool that records and plays back browser sessions and allows engineers to look at those sessions to understand what kinds of issues are occurring in the user’s browser. Matt joins the show to talk about the field of frontend monitoring, and the engineering behind his company LogRocket. Sponsorship inquiries: sponsor@softwareengineeringdaily.com The post Frontend Monitoring with Matt Arbesfeld appeared first on Software Engineering Daily.

Shopify is a platform for selling products and building a business. It is a large e-commerce company with hundreds of engineers and several different mobile apps. Shopify’s engineering culture is willing to adopt new technologies aggressively, trying new tools that might provide significant leverage to the organization. React Native is one of those technologies. React Native can be used to make cross-platform mobile development easier by allowing code reuse between Android and iOS. React Native was developed within Facebook, and has been adopted by several other prominent technology companies, with varying degrees of success.  Many companies have seen improvements to their mobile development and release process. However, in a previous episode, we talked with Airbnb about their adoption of React Native, which was less successful. Farhan Thawar is a VP of engineering at Shopify. He joins the show to talk about Shopify’s experience using React Native, the benefits of cross-platform development, and his perspective on when it is not a good idea to use React Native. Sponsorship inquiries: sponsor@softwareengineeringdaily.com The post Shopify React Native with Farhan Thawar appeared first on Software Engineering Daily.

V8 is the JavaScript engine that runs Chrome. Every popular website makes heavy use of JavaScript, and V8 manages the execution environment of that code. The code that processes in your browser can run faster or slower depending on how “hot” the codepath is. If a certain line of code is executed frequently, that code might be optimized to run faster. V8 is running behind the scenes in your browser all the time, evaluating the code in your different tabs and determining how to manage that runtime in memory. As V8 is observing your code and analyzing it, V8 needs to allocate resources in order to determine what code to optimize. This process can be quite memory intensive, and can add significant overhead to the memory overhead of Chrome. Ross McIlroy is an engineer at Google, where he worked on a project called V8 Lite. The goal of V8 Lite was to significantly reduce the execution overhead of V8. Ross joins the show to talk about JavaScript memory consumption, and his work on V8 Lite. We have done some great shows on JavaScript in the past, which you can find on SoftwareDaily.com. Also, if you are interested in writing about JavaScript, we have a new writing feature that you can check out by going to SoftwareDaily.com/write. The post V8 Lite with Ross McIlroy appeared first on Software Engineering Daily.