lazysizes
webpack
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lazysizes | webpack | |
---|---|---|
19 | 330 | |
17,297 | 64,178 | |
- | 0.4% | |
0.0 | 9.8 | |
26 days ago | about 15 hours ago | |
JavaScript | JavaScript | |
MIT License | MIT License |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
lazysizes
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Optimizing Images for Developer Blogs
Use a JavaScript library to implement lazy loading. There are a number of JavaScript libraries available that can help you implement lazy loading, such as Lazysizes and Lozad.
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Generate thumbhash at edge for tiny progressive images
Normally I would write some client-side JS to do this but as this project is solely server-rendered I opted to use a simple tried-and-true library for this: lazysizes.
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Tell HN: I was tired of being a perfectionist so I built an app within 24 hours
I recently did some optimizations on my personal website to make the images load “lazily.” In other words it only loads stuff once it hits the viewport. I think that’s what you’re looking for. I tried two techniques:
1. There is an HTML attribute to do just this and it seems to work for iframes too: https://developer.mozilla.org/en-US/docs/Web/Performance/Laz...
2. There is a simple library called “lazy sizes” (https://github.com/aFarkas/lazysizes)
I tried to avoid the lib and use the native HTML… but for whatever reason the lib worked more reliably/effectively in manual tests as well as in my benchmarking via PageSpeed / Lighthouse. YMMV!
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What unpopular webdev opinions do you have?
lazysizes is better than loading="lazy"
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Native lazyload images vs other libraries
Since browsers support native lazy-loading, do we need libraries like this https://github.com/aFarkas/lazysizes?
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Few tips to improve WebPage Performance
Use Lazy loading for below-the-fold images. (You can use different 3rd party libraries like Unveil, lazysizes, etc.)
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The Ultimate Eleventy Template for your blog with a FREE minimalist theme [Open Source]
⚡️ Lazy load images with lazysizes
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Best CLS Practices for Images
You can also use this really great library for handling the loading of images in a holistic and well-supported way or you can look at manually implementing the LQIP technique.
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HTML tips you might not have been aware of
And, lazyloading is only for images. If you use e.g. lazysizes you can do anything with it. I'm a digital publisher so I use it for ads and embedded tweets/IGs and so on.
- LazyLoad not loading all the times the images. Fix or change lazyload mode? Angular project
webpack
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Getting started with TiniJS framework
Homepage: https://webpack.js.org/
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Optimizing React Apps for Performance: A Comprehensive Guide
Click "Start Test." WebPageTest generates a comprehensive report with details about the loading process, including time to first byte (TTFB), page load time, and visual progress. ### Setting Benchmarks with Lighthouse Start with Lighthouse audits to maximize the performance of your React application. Evaluate Lighthouse's scores and suggestions with careful consideration. Next, set benchmarks that are in line with industry norms or customized to meet your unique performance goals. Lastly, pay close attention to the places in your application where it needs work. You can improve your React application's effectiveness by carefully following these procedures, which will guarantee that it satisfies the required performance requirements. ### Analyzing Performance Results with WebPageTest In order to fully evaluate your webpage's performance, launch WebPageTest with a variety of systems, simulating a variety of user scenarios. Examine the waterfall chart carefully to identify loading patterns and bottlenecks, which are essential for improving the user experience. To see the page's rendering process over time and do a thorough examination, use filmstrip views. To effectively assess performance, pay special attention to measures such as time to first byte (TTFB), start render time, and fully loaded time. Also, a better understanding of performance variances is made possible by comparing findings across various test designs, which helps make well-informed recommendations for improving webpage responsiveness and efficiency. ## Impact of third-party libraries on React app performance Third-party library integration can speed up development while improving functionality in our React application. It's crucial to consider the possible effects on performance, though. Because heavy or poorly optimized libraries might negatively impact the speed and usability of our application. ### Bundle Size Look at the distribution file sizes related to the library, and use tools such as Bundlephobia or Webpack Bundle Analyzer to fully evaluate their impact on your bundle size. This thorough analysis enables you to make well-informed decisions about whether to include the library, making sure that its contribution minimizes superfluous bulk in your application's codebase and is in line with your optimization goals. ### Network Requests Analyze how the third-party library affects network requests to maximize performance. Reduce the number of requests made overall by minimizing external dependencies. This will enhance the user experience and loading speeds. Select appropriate libraries, maximize asset delivery, and leverage code splitting to load components asynchronously. You may improve the effectiveness and responsiveness of your application and provide users with a better experience by cutting down on pointless network queries. ### Execution Time Examine the library's code for any possible performance problems or bottlenecks in order to analyze the runtime performance of the library. Look for places where the code may execute slowly or inefficiently. You may ensure smoother operation inside your application by identifying and addressing any areas of the library's implementation that may be impeding ideal performance by doing a comprehensive assessment. ### Code Splitting for Third-Party Libraries Implementing code splitting is an effective strategy to load third-party libraries only when they are required, reducing the initial page load time. Use dynamic imports to load the library lazily:
- Creating Nx Workspace with Eslint, Prettier and Husky Configuration
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Google: Angular and Wiz Are Merging
Thanks for the thorough answer!
I confess I wasn't thinking about a particular build tool. My recent experience has been with Vite, where I took a similar approach to what you describe, but haven't had to dig deep into bundle performance because that's not a bottleneck for our application. The last time I did deeper work on the subject was years ago with Webpack.
I thought Webpack at least did dead-code elimination before splitting things into chunks. If I'm reading this random GitHub issue[1] right (and the asker is also right), Webpack does partially behave as I expected, but the pre-chunking optimization pass occurs before things like constant expression evaluation.
[1] https://github.com/webpack/webpack/issues/16672
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JS Toolbox 2024: Bundlers and Test Frameworks
Webpack is a powerful and widely-used module bundler for JavaScript applications. It’s known for its flexibility and extensive plugin system, making it a popular tool in complex web development projects.
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Webpack: The Web Module Bundler
Thats all about Webpack Basic, there are lots of feature of webpack, You can check here: https://webpack.js.org/
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How to improve page load speed and response times: A comprehensive guide
Many web pages use CSS and JavaScript files to handle various features and styles. Each file, however, requires a separate HTTP request, which can slow down page loading. Concatenation comes into play here. It involves combining multiple CSS or JavaScript files into a single file. As a result, pages load faster, reducing the time spent requesting individual files. Gulp, Grunt, and Webpack are some of the tools that can assist you in speeding up the concatenation process. They enable seamless merging of many files during development, ensuring deployment readiness.
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Build a Vite 5 backend integration with Flask
Once you build a simple Vite backend integration, try not to complicate Vite's configuration unless you absolutely must. Vite has become one of the most popular bundlers in the frontend space, but it wasn't the first and it certainly won't be the last. In my 7 years of building for the web, I've used Grunt, Gulp, Webpack, esbuild, and Parcel. Snowpack and Rome came-and-went before I ever had a chance to try them. Bun is vying for the spot of The New Hotness in bundling, Rome has been forked into Biome, and Vercel is building a Rust-based Webpack alternative.
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Top 20 Frontend Interview Questions With Answers
Webpack is a module bundler, the main purpose of which is to bundle JavaScript files to make them usable in a browser.
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A step-by-step guide: How to create and publish an NPM package.
NPM packages include a wide range of tools such as frameworks like Express or React, libraries like jQuery, and task runners such as Gulp, and Webpack.
What are some alternatives?
vanilla-lazyload - LazyLoad is a lightweight, flexible script that speeds up your website by deferring the loading of your below-the-fold images, backgrounds, videos, iframes and scripts to when they will enter the viewport. Written in plain "vanilla" JavaScript, it leverages IntersectionObserver, supports responsive images and enables native lazy loading.
craco - Create React App Configuration Override, an easy and comprehensible configuration layer for Create React App.
ng-bootstrap - Angular powered Bootstrap
esbuild - An extremely fast bundler for the web
react-lazy-load - React component that renders children elements when they enter the viewport.
vite - Next generation frontend tooling. It's fast!
Tailwind CSS - A utility-first CSS framework for rapid UI development.
Rollup - Next-generation ES module bundler
select2 - Select2 is a jQuery based replacement for select boxes. It supports searching, remote data sets, and infinite scrolling of results.
parcel - The zero configuration build tool for the web. 📦🚀
PrismJS - Lightweight, robust, elegant syntax highlighting.
gulp - A toolkit to automate & enhance your workflow