IdeaWell

Project ideas from Hacker News discussions.

jQuery 4

Original Article

Hacker News Discussion

šŸ“ Discussion Summary (Click to expand)

The Persistence of Legacy Environments

Despite being 13 years old, IE 11 is still supported by jQuery 4, primarily due to users in corporate, government, and educational sectors who cannot upgrade due to legacy software, institutional inertia, or lack of resources.

  • tartoran: "Backwards compatibility. Apparently there are still some people stuck on IE11. It's nice that jQuery still supports those users and the products that they are still running."
  • flomo: "There are some really retrograde government and bigcorps, running ten year old infrastructure. And if that is your customer-base? You do it."
  • ulrischa: "Not everybody in the world can use modern hard- and software. There are tons of school computer labs running old software."

jQuery vs. Modern Alternatives

Users debate the value of jQuery versus modern standards (vanilla JS, Fetch API) and lightweight frameworks (Preact), weighing its simplified syntax and "all-in-one" nature against bloat and the obsolescence of its original browser compatibility features.

  • maxloh: "Even after migrating to ES modules, jQuery is still somewhat bloated. It is 27 kB (minified + gzipped). In comparison, Preact is only 4.7 kB."
  • niek_pas: "What does jQuery provide that the Fetch API doesnā€™t?"
  • simondotau: "The terse and chainable jQuery syntax is more readable, easier to remember, and thus more pleasant to maintain. Rewriting for stdlib is easy, but bloats out the code by forcing you to pepper in redundant boilerplate on nearly every line."

Nostalgia and Enduring Legacy

Many developers express fondness for jQuery, crediting it with enabling their careers, simplifying early web development chaos, and providing a still-relevant solution for small interactive projects where modern frameworks might be overkill.

  • karim79: "Still one of my favourite libs on the whole planet. I will always love jQuery. It is responsible for my career in (real) companies."
  • judefong81: "The first time I truly enjoyed web development was when I got the hang of jQuery. Made everything so much simple and usable!"
  • madduci: "jQuery is still my way to go for any website requiring some custom interaction that isn't available in vanilla js."

šŸš€ Project Ideas

IE11 Test Farm SaaS

Summary- Corporate intranets still lock users into legacy browsers (IE6ā€‘11) that canā€™t be upgraded without costly rewrites. - Developers need a reliable way to run automated tests on these browsers without maintaining physical VMs.

Details

Key Value
Target Audience Frontā€‘end engineers, QA teams, DevOps at enterprises with legacy web apps
Core Feature Onā€‘demand cloud VMs preā€‘installed with all IE versions (including IE11) and CI pipelines that can trigger automated Selenium/Appium tests
Tech Stack Docker + KVM for VM isolation, Terraform for provisioning, Selenium Grid, Grafana monitoring, AWS/GCP
Difficulty High
Monetization Revenue-ready: Payā€‘perā€‘minute compute + tiered subscription (Starter $19/mo, Pro $99/mo, Enterprise custom)

Notes

  • HN users repeatedly lament the burden of supporting IE11; a hosted test farm removes that overhead and can be advertised as ā€œrun IE11 tests with a click.ā€
  • Could integrate with GitHub Actions to autoā€‘run regression suites on pull requests, directly addressing the security concerns raised in the discussion.

Open-Source Dependency Health Dashboard

Summary

  • Critical libraries like jQuery still receive security patches and version updates, but many teams lack visibility into their health.
  • Without a centralized view, projects can accidentally depend on abandoned or vulnerable releases.

Details

Key Value
Target Audience Openā€‘source maintainers, DevOps engineers, security teams
Core Feature Realā€‘time dashboard that tracks version releases, CVE exposure, download stats, and changeā€‘frequency for selected libraries
Tech Stack Node.js backend, GraphQL API, React frontend, PostgreSQL, ElasticSearch for log analysis
Difficulty Medium
Monetization Revenue-ready: SaaS subscription $15/user/month, with free tier for public repos

Notes

  • The discussion highlighted how jQuery 4ā€™s breaking changes could surprise maintainers; a dashboard would surface such shifts early, making it valuable to the community.
  • Could alert users when a libraryā€™s latest version drops support for legacy browsers, helping them plan migrations proactively.

Legacy Browser Emulator Chrome Extension

Summary

  • Developers often need to debug sites in IE11 but lack easy local tools; spinning up full VMs is cumbersome.
  • A lightweight emulator can mimic IE11ā€™s rendering quirks directly inside Chrome.

Details

Key Value
Target Audience Frontā€‘end developers, QA engineers, tech leads in enterprises with legacy UI
Core Feature Chrome extension that intercepts page rendering and applies IE11 CSS/JS quirks, including ActiveX and IEā€‘specific box model bugs
Tech Stack Chrome Extension APIs (Manifest V3), WebAssembly for performanceā€‘critical transformations, PostCSS for polyfills
Difficulty Medium
Monetization Hobby

Notes

  • HN participants noted that ā€œIE11 desktop app remains supported on Windows LTSCā€ ā€“ an emulator could let those users test without maintaining a VM.
  • Could be marketed as a free developer tool, driving goodwill and potential paid premium features (e.g., network throttling, security scanning).

jQuery Compatibility Bridge (Modernā€‘JS Wrapper)

Summary

  • Many legacy codebases cling to jQuery because rewriting is risky; yet they want to adopt newer JS features.
  • A thin wrapper can expose the jQuery API while internally using native DOM methods where possible.

Details

Key Value
Target Audience Maintenance teams on legacy apps, SDK providers, internal tooling groups
Core Feature npm package that provides a dropā€‘in jquery module; maps common functions (e.g., $.ajax, $.each) to native fetch, forEach, etc., while preserving legacy quirks
Tech Stack TypeScript, Rollup bundler, ESM/CJS dual output, Jest for regression testing
Difficulty Low
Monetization Revenue-ready: Oneā€‘time license $49 per developer, enterprise bulk discounts

Notes

  • The thread emphasized ā€œjQuery still supports those usersā€ ā€“ this bridge lets teams modernize without abandoning the familiar API, directly addressing the ā€œwhy upgrade what works?ā€ sentiment.
  • Could include automatic polyfill generation for newer browsers, making it attractive for startups wary of technical debt.

Corporate Legacy Stack Analyzer CLI

Summary

  • Large organizations struggle to catalog where IE11 or old jQuery versions are used across dozens of internal apps.
  • Manual inventory is errorā€‘prone and timeā€‘consuming.

Details

Key Value
Target Audience DevOps engineers, platform teams, CTOs overseeing enterprise IT portfolios
Core Feature CLI tool that scans codebases for script tags referencing legacy browsers/libraries, generates a CSV report, and suggests migration tickets
Tech Stack Go (for speed), treeā€‘sitter for AST parsing, Mustache templating for report generation, GitHub Action integration
Difficulty Medium
Monetization Hobby

Notes

  • Participants discussed ā€œThere are likely millions of computers still running MSIE11ā€ ā€“ this tool would give them concrete data to prioritize upgrades.
  • Could be packaged as an openā€‘source utility with optional paid support for generating migration roadmaps, fitting the ā€œwhy upgrade what works?ā€ pain point.

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