vanilla-lazyload
sveltekit-simple-image-gallery
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vanilla-lazyload | sveltekit-simple-image-gallery | |
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9 | 1 | |
7,539 | 5 | |
- | - | |
5.6 | 4.9 | |
about 14 hours ago | 8 months ago | |
JavaScript | JavaScript | |
MIT License | BSD 3-clause "New" or "Revised" License |
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vanilla-lazyload
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How to Lazy Load Html Videos
Vanilla-lazyload :
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Beginners Guide to Web Performance: Optimizing Images
If you want to guarantee lazy-load across all (JavaScript-capable) browsers and not just images, I've used Vanilla Lazyload a couple years ago with success, but as this relies on using a data-src attribute, you will get W3C validation errors unless you also set a src attribute. But you don't want to set the src to a real image, because this will nullify the whole point of using the plugin, so set it to a 1x1 pixel "image" that will immediately get replaced by the data-src once the image scrolls into view.
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Native lazy-loading of images with zero Javascript
There are a lot of snippets and scripts like vanilla-lazyload out there that enable lazy-loading via javascript. In almost all cases a data attribute is used to prevent upfront image loading.
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LQIP in Rails using Thumbor and base64
Right, time to put the base64 images to use. What you want to do is to use these as placeholders while the full image is loading. I usually use vanilla-lazyload for this. It is a simple and tiny project that gets the job done. Do mind that if you use Turbolinks you have to make sure that vanilla-lazyload does its thing after Turbolinks is done. If you use Webpacker it will look something like this in your application.js file:
sveltekit-simple-image-gallery
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Simple Svelte Responsive Image Gallery
Lastly create a src/lib/assets/ folder and download the six images from that location in the Git repo. Finally create src/lib/generated and repeat, copying the JavaScript files from the equivalent folder on the GitHub repo. Typically you would want to generate these files in a script, updating for required images formats, widths and pixel densities, though I have done this already to save time. You can take a look at the script which generates this data including low resolution placeholders in the repo.
What are some alternatives?
splide - Splide is a lightweight, flexible and accessible slider/carousel written in TypeScript. No dependencies, no Lighthouse errors.
lazysizes - High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration.
sveltekit-image-plugin - SvelteKit demo code for using vite-imagetools to add cached, responsive, Next-Gen images to a SvelteKit site with no cumulative layout shift.
react-lazy-load-image-component - React Component to lazy load images and components using a HOC to track window scroll position.
web-vitals - Essential metrics for a healthy site.
tailwindcss - Add Tailwind CSS to your Svelte project
webp-hero - browser polyfill for the webp image format
ImageOptim - GUI image optimizer for Mac
loading-attribute-polyfill - Fast and lightweight dependency-free vanilla JavaScript polyfill for native lazy loading / the awesome loading='lazy'-attribute.
ElementsJS - A lightweight DOM Manipulation library for VanillaJS
SvelteKit - web development, streamlined
ailog - An attendance log for Kizuna AIs' videos for when love-pii held the AI identity.