InfoQ Homepage JavaScript Libraries Content on InfoQ
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New Features and Design Principles of Vue 3.0 - Evan You at VueConf Toronto
With the major iteration of the Vue.js framework scheduled for Q1 2020, Evan You, creator and project lead of Vue.js, discussed in detail at VueConf Toronto the design principles behind Vue 3, together with the latest additions to the new release.
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Building a Custom React Renderer - Sophie Alpert at ReactConf 2019
React developers may know that the renderer lives in a separate module from React. They may not know that they can write their own renderer by implementing the same interface than React DOM implement. Sophie Alpert, former manager of @reactjs team, gave in her talk at ReactConf 2019 a concrete example of how to use the react-reconciler package to implement a custom renderer.
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Introducing React Concurrent Mode
React's "Concurrent Mode" refers to a set of newly-released experimental features in React that aim to increase the responsiveness of applications by using interruptible rendering.
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Vue.js CLI 4 Released
The Vue CLI team recently updated its command line tool for Vue.js development to version 4. The release will help developers automate the migration process, use additional package managers and remove extraneous whitespace for more efficient DOM structures.
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Preact X Adds Features, Remains Lean
The Preact team announced Preact X, adding significant updates such as fragments and hooks to their React alternative, while retaining their lean size of less than 4KB, gzipped.
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Running WASI in the Browser and Node.js with Wasmer-JS
Aaron Turner, developer relations at Wasmer, announced that the recently released Wasmer-JS allows developers to run WASI modules in both Node and the browser. Turner provides wasm-terminal as an example of a terminal application built with Wasmer-JS, which allows to fetch and run WASI modules.
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Vue 2 vs. Vue 3: James Stewart at Vue Glasgow Meetup
James Stewart recently compared the incoming Vue 3 function-based Composition API to the current Vue 2.x class-based Options API. In a presentation held at the second Vue.js Glasgow meetup event, Stewart analyzed the code from the same application written with both APIs, and concluded that the Vue 3 API leads to better code structuring, and makes the isolation and composition of logic easier.
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Immer JavaScript Immutable State Management Framework Releases V4
Alec Larson released a few days ago the fourth major iteration of award winner JavaScript library Immer, thereby patching an important edge case. Immer is a JavaScript package which allows developers to work with immutable state as it was mutable, by implementing a copy-on-write mechanism.
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The Three Key Dimensions of Front-End Frameworks - Evan You at JS Conf Asia 2019
Evan You, Vue.js framework's creator, recently talked at JS Conf Asia 2019 about seeking balance in framework design. Frameworks should be distinguished on three design tradeoffs: scope, render mechanism, and state mechanism, rather than on popularity-based metrics. Frameworks are best evaluated on a continuous tradeoff axis instead of with a binary (good vs. bad) determination.
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Babel 7.5: Dynamic Import, Pipeline Operator and More
The recently released Babel 7.5 can now parse and transpile F# pipelines and dynamic imports. Babel 7.5 additionally has experimental support for TypeScript namespaces.
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The Polymer Project Releases Lit-Html and LitElement for Performance-Focused Web Components
The Polymer Project recently released lit-html v1.0 together with LitElement v2.0. lit-html is a light-weight, extensible HTML templating JavaScript library. LitElement is a JavaScript library to create lightweight, optimized-for-performance web components. The created web components can then be used in any framework or no framework to build web applications.
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Pixi.js, HTML5 Alternative to Adobe Flash, Adds WebGL Support for Cross-Platform, Interactive Apps
PixiJS, a standard-based alternative to Adobe Flash, released its fifth major version with faster rendering and lower GPU utilization. PixiJS v5 abstracts WebGL features behind a new API which falls back to HTML5’s canvas if needed. Developers thus need not dive into the WebGL API or deal with device compatibility to create rich, interactive graphics, cross-platform applications, and games.
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Svelte 3 Front-End Framework Moves Reactivity into the JavaScript Language, Q&A with Rich Harris
The recently released front-end framework Svelte 3 introduces a new syntax to express reactivity in JavaScript. InfoQ interviewed Rich Harris, Svelte creator, and discussed what Svelte 3 means and its implications for developers.
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Benchmark Ranks 18 Front-End Frameworks Implementation of Medium.com Clone
The RealWorld-based benchmark comparing the implementation by 18 front-end frameworks of a non-trivial full-stack application code-named Conduit recently updated its results. Most (13 out of 18) frameworks obtain a top-tier LightHouse performance score. Svelte, Stencil, AppRun, Dojo, HyperApp and Elm exhibit the lowest payload transferred over the network (< 30 KB).
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Nest.js 6 Improves GraphQL Integration and Improves Platform Flexibility
Nest.js recently announced the release of version 6 of their TypeScript framework. Nest.js 6 improves support for GraphQL and also decouples the platform-specific portions of their framework to support applications beyond their traditional Express and Node.js based architecture.