InfoQ Homepage JavaScript Content on InfoQ
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Storybook 5.3 Released, Targets Design Systems, Supports Web Components
Storybook 5.3 was recently released and strives to allow developers to build production design systems faster. Storybook users can now document their components with MDX, have a documentation site automatically generated, and integrate with popular design tools like Sketch, Figma or Adobe XD. Storybook 5.3 also now officially supports web components.
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A Guide to Writing Properties of Pure Functions - John Hughes at Lambda Days 2020
John Hughes, co-designer of Haskell and Quickcheck, recently discussed property-based testing at Lambda Days 2020. Hughes presented in his talk five different strategies for coming up with properties and compared their effectiveness. Metamorphic and model-based properties reportedly show high effectiveness.
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Chrome 80 Released with New Cookie Policy, Module Workers and Optional Chaining
Google recently released Google Chrome 80. Chrome 80 brings important changes to its cookie policy, supports modules in workers and optional chaining in JavaScript; adds new origin trials while graduating previous origin trials; links directly to text fragments on a page with a new hashtag syntax; and more.
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Angular 9 Released with Ivy as Default Rendering Engine
Smaller bundle sizes, improved build times, and better debugging are just some of the new improvements available in Angular 9, the latest major release of Google's popular SPA (Single Page Application) framework.
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JSX Alternative HTM 3.0 Released, with Static Subtree Caching and TypeScript Support
The Hyperscript Tagged Markup (HTM) library, which proposes an under-1KB, transpiler-free alternative to JSX, released its third major iteration. HTM 3.0 now optimizes template rendering by automatically detecting and caching static sections of a template. HTM 3.0 also provides TypeScript typing files and documentation updates.
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Zero Server Framework Creates Web Apps from Node, React, HTML, MDX, Vue, Svelte and Python Files
The Zero Server web framework allows developers to create, build and develop web applications with server-side rendering and little to no configuration. Zero Server now accepts a mix of Node.js, React, HTML, MDX, Vue, Svelte, Python, and static files. Zero Server also now supports TypeScript.
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React Native is the Way to Go for Mobile App Development at Shopify
After a year spent experimenting with React Native, Shopify says it will adopt it for future mobile app development. Reported benefits include almost doubled development performance and over 95% code sharing across platforms.
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Npm, Inc. Announces Npm Pro for Independent JavaScript Developers
npm, Inc. recently announced the launch of npm Pro, designed for independent JavaScript developers. npm also rebranded its existing npm Orgs, which caters to teams of developers, as npm Teams.
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IoT Development with the Raspberry Pi
The Raspberry Pi is a series of low-cost, programmable computers that include a set of GPIO, or 'General Purpose Input Output', pins that can be used to connect and control external electronic devices, and to create Internet of Things (IoT) solutions.
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Electron Desktop JavaScript Framework Finds a New Home
At the Node+JS Interactive conference in Montreal, the OpenJS Foundation announced that the Electron framework has joined the foundation. Electron is a popular cross-platform desktop application development tool based on Node.js and Chromium.
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NativeScript Replaces JavaScriptCore with V8 for iOS Apps
NativeScript new JavaScript runtime for iOS, based on Google's V8 engine, is now in beta, after several months of development. This change should bring reduced app startup time as well as simplify NativeScript's development process.
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ECMAScript's Top-Level Await Proposal Implemented in V8, Babel and Webpack
The top-level await's ECMAScript proposal, which reached Stage 3 last year, is now implemented in the V8 JavaScript engine, and supported by Webpack and Babel. Top-level await enables dynamic dependency pathing, resource initialization, and dependency fallbacks at module import time. Top-level await results in a non-deterministic module execution order.
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Babel 7.7 Released with Improved TypeScript Support, Top-Level Await and More
The recently released Babel 7.7 now parses top-level await, Flow enum declarations (Flow proposal), and proposes recovery options from certain syntax errors. Babel 7.7 now supports TypeScript 3.7. Babel also introduces a new optional babel.config.json configuration files, and miscellaneous other features and bug fixes.
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Snowpack Releases 1.0, Seeks to Speed Up App Development by Removing the Need for Bundlers
The Pika package registry recently released the first major version of Snowpack. Snowpack seeks to streamline the developer experience by leveraging web standards and modern browsers. Developers who restricts themselves to using ES modules, and standard features of the JavaScript language may no longer need to go through an often complex build chain to build, run and debug their applications.
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Decision Strategies for a Micro Frontends Architecture
Micro frontends is an architectural style for frontend applications based on the concepts of microservices. Luca Mezzalira believes this is a style that will change the future of these applications. There are some challenges though and architectural decisions that must be made, and he has therefore created a decisions process for embracing a micro frontends architecture.