es-module-shims
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es-module-shims | codesandbox-client | |
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13 | 366 | |
1,481 | 12,894 | |
- | 0.6% | |
6.5 | 9.5 | |
8 days ago | 1 day ago | |
JavaScript | JavaScript | |
MIT License | GNU General Public License v3.0 or later |
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es-module-shims
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⏰ It’s time to talk about Import Map, Micro Frontend, and Nx Monorepo
For full compatibility and extra features, we usually use the library es-module-shims.
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JavaScript import maps are now supported cross-browser
You can polyfill for unsupported browsers, it works surprisingly well: https://github.com/guybedford/es-module-shims
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Modern SPAs without bundlers, CDNs, or Node.js
https://github.com/guybedford/es-module-shims has a polyfill. (But it is fairly large: 53KB raw, 15KB gzipped, 32KB minified, 11KB minified+gzipped. It’s providing a lot of likely-unnecessary functionality. I’d prefer a stripped-down polyfill that can also be lazily-loaded, controlled by a snippet of at most a few hundred bytes that you can drop into the document, only loading the polyfill in the uncommon case that it’s needed—like how five years ago as part of modernising some of the code of Fastmail’s webmail, I had it fetch and execute core-js before loading the rest iff !Object.values (choosing that as a convenient baseline), so that the cost to new browsers of supporting old browsers was a single trivial branch, and maybe fifty bytes in added payload.)
- Writing JavaScript without a build system
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Modern SPAs without bundlers, CDNs, or NodeJS
If we call the shim a framework, would you be ok with it then?
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Import maps 101
If you want import maps to be supported in any browser, there is an ES Module Shims polyfill which is compatible with any browser that has baseline ES Module Support (i.e. Edge 17+, Firefox 60+, Safari 10.1+, and Chrome 61+).
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Everything You Need to Know About JavaScript Import Maps
An example of a polyfill that can be used is the ES Module Shims polyfill that adds support for import maps and other new module features to any browser with baseline support for ES modules (about 94% of browsers). All you need to do is include the es-module-shim script in your HTML file before your import map script:
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How bad is it to not use a bundler?
i often use es-module-shims so i can load npm packages in browsers without a bundler 😎
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Fresh – The next-gen web framework
I explored using client-side service workers for build-less deployment workflows a while back, but the blocker was the initial visit when the service worker hasn't been installed yet. Ended up using es-module-shim's fetch hook (https://github.com/guybedford/es-module-shims#fetch-hook) instead, which worked quite well.
I kept the demo repo around here, in case it's helpful to anyone: https://github.com/lewisl9029/buildless-hot-reload-demo.
The repo itself is quite out of date at this point, but my current project, Reflame, is essentially the spiritual successor: https://reflame.app/
Reflame has the same ideals of achieving the developer experience I've always wanted for building client rendered React apps:
- instant production deployments (usually <200ms)
- instant preview environments that match production in pretty much every imaginable way (including the URL), that can also be flipped into development mode for fast-refresh (for the seamless feedback loop we're used to in local dev) and dev-mode dependencies (for better error messaging, etc)
- close-to-instant browser tests (1-3 seconds) that enable image snapshot comparisons that run with maximum parallelism and only rerun when their dependency graphs change
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Do you use Import-Map for your client-side ESM?
The problem of course is that browser-support for Import Maps is sadly lacking (only Chrome/Chromium-based at time of writing). There are tricks/shims to get around this, like ES-Module-Shims. I find these approaches to be a little too intrusive, personally.
codesandbox-client
- Free Resources Every Web Developer Should Know About
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Codepen, Codesandbox and JSFiddle support in SciChart.js
Ok last but not least, Codesandbox. This is a newcomer to online collaborative workspaces which seems much more advanced. Codesandbox.io allows you to create node/npm projects, install packages, setup webpack or bundlers, include frameworks like React or Vue, and code in Typescript or JavaScript. It looks and acts like an IDE (VSCode) in the cloud, allowing shareable projects, not just code snippets.
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Top Online IDE Websites in 2024 ⌨️
Sync your projects effortlessly with GitHub. Codesandbox
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Struggling to Learn React Or Any JavaScript Framework? Here are 7 Mistakes Holding Back (And What To Do Instead) 💪🎉
Use online code editors such as Codesandbox or Stackblitz. They let you focus on writing code rather than dealing with local environment complexities.
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How to build filter functionality in an e-commerce website in React js
For this article, I will be using an online code editor called Codesandbox. You can go ahead and use it as well, you can also create normal React js application on your computer.
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Problem with POST request on custom GPT action
{ "openapi": "3.0.0", "info": { "title": "CodeSandbox API", "version": "1.0.0" }, "servers": [{"url": "https://codesandbox.io"}], "paths": { "/api/v1/sandboxes/define?json=1": { "post": { "summary": "Create a new sandbox", "operationId": "Create Sandbox", "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "properties": { "files": { "type": "object" } }, "required": ["files"], "example": { "files": { "index.js": { "content": "console.log('hello world!');" } } } } } } }, "responses": { "200": { "description": "Sandbox successfully created", "content": { "application/json": { "schema": { "type": "object", "properties": { "sandbox_id": { "type": "string" } } } } } } } } } } }
- Advent of Code en JavaScript Chile
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React Hooks and Fiber deep diving
Create a CodeSandbox;
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Blueprint: Navigating the UX to Code Handoff
Start by visiting CodeSandbox's official website.
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StackOverflow alternatives for web developers
Alternative: CodePen, CodeSandbox. But in the end, we don't need StackOverflow or any alternative at all to use our brains and analyze the situation. (Further reading: Beyond Googling the Error Message
What are some alternatives?
import-maps - How to control the behavior of JavaScript imports
gitpod - The developer platform for on-demand cloud development environments to create software faster and more securely.
hyperscript - Create HyperText with JavaScript.
Visual Studio Code - Public documentation for Visual Studio Code
Rust Language Server - Repository for the Rust Language Server (aka RLS)
Visual Studio Code - Visual Studio Code
stampino-element
openvscode-server - Run upstream VS Code on a remote machine with access through a modern web browser from any device, anywhere.
import-remap - Rewrite ES module import specifiers using an import-map.
layoutit-grid - Layoutit grid is a CSS Grid layout generator. Quickly draw down web pages layouts with our clean editor, and get HTML and CSS code to quickstart your next project.
mercury - A truly modular frontend framework
sandpack - A component toolkit for creating live-running code editing experiences, using the power of CodeSandbox.