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Size Limit is a performance budget tool for JavaScript. It checks every commit on CI, calculates the real cost of your JS for end-users and throws an error if the cost exceeds the limit. ES modules and tree-shaking support. Add Size Limit to GitHub Actions, Circle CI or another CI system to know if a pull request adds a massive dependency. Modular to fit different use cases: big JS applications th
Thank You CloseBrace was a JavaScript tutorial website focusing on React, Express, and ES6. It was built, launched, and run by Christopher Buecheler, who also provided all of the content. He is currently writing this in the third person, and feels very strange about that, so let's switch to first person, shall we? I founded CloseBrace in late 2016 and it was my full-time job for over a year and a
Most web developers I talk to these days love writing JavaScript with all the newest language features—async/await, classes, arrow functions, etc. However, despite the fact that all modern browsers can run ES2015+ code and natively support the features I just mentioned, most developers still transpile their code to ES5 and bundle it with polyfills to accommodate the small percentage of users still
Intersection Observer W3C Working Draft, 18 October 2023 More details about this document This version: https://www.w3.org/TR/2023/WD-intersection-observer-20231018/ Latest published version: https://www.w3.org/TR/intersection-observer/ Editor's Draft: https://w3c.github.io/IntersectionObserver/ Previous Versions: https://www.w3.org/TR/2023/WD-intersection-observer-20231003/ https://www.w3.org/TR/
Build-time Optimizations in Frontend Engineering Evan You JSConf China 2017
As a new developer, finding and fixing bugs can be difficult. You may be tempted to randomly use console.log() in an attempt to get your code working correctly. Not Anymore! This article is all about debugging the correct way! You’ll learn how to use the Chrome Developer Tools to set up breakpoints and step through your code. This workflow is often a much more efficient way to find and fix bugs in
Deciding on a JavaScript framework for your web application can be overwhelming. Angular and React are very popular these days, and there is an upstart which has been getting a lot of traction lately: VueJS. What’s more, these are just a few of the new kids on the block. Javascripts in 2017 — things aren’t easy these days!So, how are we supposed to decide? A pros-and-cons list never hurts. We’ll d
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