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My production site is built with React on the client side and a Node-Express API behind it. One part of the UI—specifically the buttons and form controls—is behaving unpredictably: clicks occasionally fire twice, form state jumps around, and sometimes nothing happens at all. I need someone to dive into the React code, track down the root cause, and implement a clean, test-covered fix without breaking any other components. The stack in play is React 18, plain JavaScript (no TypeScript), Express 4, and Node 18. Most logic is in functional components that use hooks, so please be comfortable debugging useEffect / useState timing issues, event propagation, and async calls that hit the Express routes. If the issue originates in the API layer you’re free to patch that as well, but my priority is restoring predictable client-side behaviour. Deliverables • Isolated explanation of the fault (one-paragraph summary or commented code) • Patched code committed to my Git repo via pull request • Quick regression test or reproducible steps that prove the issue is resolved I can give you repo access and a short Loom video that shows the glitch in action as soon as we start. Let me know your estimated turnaround time and any clarifications you need.
Project ID: 40194625
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Active 4 mos ago
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49 freelancers are bidding on average $119 USD for this job

Hi, I can dive into your React code and track down why the buttons and forms behave unpredictably. I’m experienced with hooks, useEffect/useState timing, and event handling, and I can fix the issues cleanly without breaking other components. I’ll provide a clear explanation of the root cause, patch the code via PR, and include a simple test or steps to confirm the fix. I can start as soon as I get repo access and the Loom video. Depending on the complexity, I estimate 1–2 days for a solid fix.
$100 USD in 2 days
7.1
7.1

Hi - I can dive into your React 18 code and make the button and form behavior predictable again without collateral damage. Issues like double clicks, skipped handlers, or jumping form state almost always come from a small set of causes: effects firing twice in React 18, event handlers recreated on each render, async calls mutating state out of order, or implicit event bubbling that isn’t being stopped. I ve fixed this exact class of bugs by first reproducing it reliably, then tracing render cycles and handler execution to see where state diverges from intent. My approach is focused: isolate the faulty component(s), identify the root cause (not just suppress the symptom), and implement a fix that’s idiomatic for hooks-based React. If the Express API contributes to the issue (duplicate responses, race conditions), I ll patch that too, but only where necessary. I ll leave a clear explanation in code or comments, push a clean PR, and add a small regression check or reproducible steps so you know it’s actually resolved. If this direction aligns, we can discuss in detail in chat.
$250 USD in 7 days
5.8
5.8

I am Sumit Joshi from Sacesta Technologies. I’m comfortable debugging React 18 hook-heavy apps and isolating timing, event, and async side-effect issues without destabilizing the rest of the UI. Double-firing clicks and unstable form state in React 18 often point to StrictMode double-invocation, stale closures in hooks, duplicated handlers, or race conditions in async calls hitting Express. How I’ll approach this First, reproduce the issue locally using your Loom and network logs. Then instrument the problematic components with targeted console tracing and React DevTools to confirm whether the root cause is event propagation, repeated renders, dependency array misuse, or API-layer duplication. If needed, I’ll also inspect Express routes for idempotency and duplicate request handling. What you’ll receive • A concise root-cause summary with either a one-paragraph explanation or inline commented code • A clean PR with minimal surface-area changes • A small regression safeguard: either a lightweight test or reproducible verification steps that confirm stable behavior I’ll keep the fix isolated and covered, avoiding broad refactors unless absolutely necessary. Tech question Is React StrictMode enabled in production, or only in development? Workflow question Do you prefer a fast patch branch for review first, or a short diagnostic report before I implement the final fix? Regards, Sumit Joshi
$140 USD in 7 days
5.9
5.9

Hi there, Root cause: race conditions and stale closures in the React components handling the buttons and form controls can allow rapid clicks to trigger multiple submissions, cause state jumps, or miss actions when async API calls race with renders. I’ll reproduce the issue from your Loom video in a controlled environment, identify the exact path in your functional components, and implement a clean fix that won’t break other parts of the UI. Plan: - tighten onClick handlers with a lightweight guard against rapid duplicates - ensure useEffect/useState updates are properly batched and canceled on unmount - make API calls robust with cancelable promises and clear loading/error states - add regression tests and a simple reproducible checklist Deliverables: - isolated fault explanation, with commented code if helpful - patch committed via a PR with minimal surface area and clear tests - reproducible steps to verify the fix locally I can review your repo, watch the Loom video, and deliver within an agreed turnaround. What is your top priority for this fix: ensuring client-side debouncing to prevent double-clicks, or patching any API race conditions that may contribute to the issue? Best regards,
$30 USD in 687 days
5.5
5.5

Hello client, I just had the chance to go through the project description in detail and it's exciting! Based on my vast experience, this project is straightforward for me, and I am interested in diving into the React code, tracking down the root cause, and implementing a clean, test covered fix without breaking any other components. Want the best results in quick time at a cost-effective price? Please message me and experience the difference. Looking forward to contributing to your project success, Fahad.
$110 USD in 2 days
5.2
5.2

I can fix the unpredictable button and form control behavior in your React 18 app. I understand how tricky useEffect and useState timing issues can cause double clicks and inconsistent form state, especially with async calls to Express routes. I'll thoroughly debug your React functional components to pinpoint the root cause and apply clean, test-covered fixes ensuring no other parts break. If needed, I'll also patch the API layer for seamless client-server interaction. I'll commit all changes via pull request with clear explanations and comments, making it easy to track the fix and maintain code quality. Would you like me to also suggest improvements for future-proofing your event handling?
$125 USD in 7 days
5.0
5.0

Building on my extensive experience of diving deep into complex code bases, hunting down bugs and ensuring optimal performance, I believe I am an ideal fit for your project. Though my specialization lies in Unity Game Development and AR/VR, the lessons of debugging and testing I've learned during my 5-year long tryst with JavaScript in HTML5 environment can be effectively applied to the challenges faced by your React Application. My understanding of hook mechanics—useEffect / useState / event propagation—would come particularly handy while resolving timing issues you're encountering in the React components. Further building on your requirements, while tackling the problem at hand, my priority would be to isolate and identify the issue before patching it up for a seamless user-experience. Additionally, as stated in your deliverables section, committing the patched code via pull request and providing a quick regression test or reproducible steps showing that the issue is resolved are assurances I am more than confident to fulfill. On top of all this, being an AWS DevOps specialist well acquainted with Express 4 and Node 18 complemented by dealing with async API calls regularly, lends me a unique advantage when it comes to who you should go with. Give me an opportunity to access your Git repo and understand your glitch better through Loom video; I assure you a quick turnaround time along with a robust solution that won't disrupt any other component of your application.
$140 USD in 7 days
4.7
4.7

Hello, thanks for posting this project. I've carefully reviewed your description and understand the importance of restoring reliable UI behavior for your React and Node-Express application. I have significant experience tracking down tricky issues in React functional components, particularly those involving hooks, event handling, and async state updates. My approach is thorough: I'll isolate the fault, provide a clear explanation, develop a robust test-proven fix, and ensure no regressions in your codebase. I'm ready to begin promptly and estimate initial findings within 1-2 days, depending on codebase size and issue complexity. Please let me know if you’d like any further details or have questions before granting repo access. Looking forward to collaborating with you. Warm regards, Vitalii
$140 USD in 1 day
4.5
4.5

As a seasoned Full-Stack Web & App Developer, JavaScript is not just another language for me, it's my bread and butter. My years of experience have honed my debugging skills, especially when it comes to issues with React, Node.js, and Express. I am well-acquainted with using useEffect and useState effectively, ensuring smooth data flow in complex applications by eliminating timing issues and event propagation problems. What sets me apart is my ability to quickly identify the root cause of seemingly inexplicable issues like the one affecting your UI. I will not only produce the necessary fixes but also provide you with an isolated explanation of the fault. This will empower you with a deeper understanding of what went wrong, how I resolved it, and if similar concerns arise in the future, you have a solid starting point to deal with them. In addition to my technological competencies, I am also known for my meticulousness and commitment towards quality deliverables. A testament to this is my profile on Freelancer.com, where clients praise my solutions for their tailor-fit approach and my dedication to client satisfaction. Working together on your project would be both a challenge that I relish as an opportunity to showcase the depth of my skill set while providing you with top-notch problem-solving capabilities. Let's collaborate to get your buttons clicking predictably again!
$30 USD in 1 day
4.1
4.1

Hi, We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on JavaScript, HTML5, jQuery / Prototype, Debugging, Node.js, Git, Regression Testing, API Integration Please come over chat and discuss your requirement in a detailed way. Regards
$140 USD in 7 days
3.5
3.5

I specialize in debugging tricky React 18 behavior, especially hook timing, double renders, and event propagation issues. I’ll methodically trace the UI instability, isolate the exact cause, and apply a clean, minimal fix that doesn’t ripple across components. You’ll get a clear root-cause explanation, a tested patch via PR, and reproducible proof the UI is stable again—fast turnaround, no guesswork.
$70 USD in 7 days
3.2
3.2

Hi, I’ll debug the React 18 hooks/event flow, isolate the double-fire/state desync root cause, and fix it cleanly without side effects. Comfortable with useEffect timing, stale closures, event propagation, and async API interactions (Node 18 / Express 4). ETA: 1–2 days with PR, clear fault explanation, and a regression test or repro steps included.
$60 USD in 3 days
3.1
3.1

Based on the symptoms (double firing, jumping state), this sounds like a classic issue with React 18's automatic batching, improper useEffect dependencies, or race conditions in async handlers. How I will approach this: Diagnosis: I will review your Loom video and the component code to check for uncleaned event listeners or useEffect loops that might be causing the "jumps." The Fix: I will implement proper debouncing/throttling for the buttons to prevent double-submissions and ensure AbortController is used for async API calls to handle race conditions (preventing old requests from overwriting new state). Safety: I strictly follow immutable state patterns to ensure the fix is isolated and doesn't introduce side effects to other components. I am comfortable working with plain JS (ES6+) and Node/Express if the issue traces back to the API response format. I can start immediately upon receiving repo access. Best regards,
$140 USD in 1 day
3.1
3.1

Hi, This bug pattern usually comes from one of two things: a handler gets attached twice after re-renders, or a state effect re-triggers a submit/click flow. Then you see double requests, “jumping” form state, and sometimes dead clicks when a stale closure runs. One stupid question: Is the double action visible in the Network tab as duplicate API calls for one click, or is it only UI state changing twice without extra requests? This tells us if the root cause is event binding or async state flow, and it changes where we fix it. In projects like this, best practice is to reproduce with React DevTools + network logs, then isolate the smallest component where the issue starts. What usually breaks here is useEffect dependencies, inline handlers recreated on each render, or event propagation causing two handlers to run. I’ll patch the cause and add a small regression test or clear repro steps so it cannot come back. I can work directly via PR in your repo and keep the fix contained. Best, Kosta
$140 USD in 7 days
2.8
2.8

Unpredictable UI behaviour usually comes from state and event lifecycles competing rather than a single broken button. At Ace360 I have resolved similar React issues where double firing and missed clicks were caused by effect timing, stale closures or event propagation conflicts. I will debug the React 18 codebase using JavaScript and Debugging to trace how useState and useEffect interact during renders. I will isolate duplicate handlers, async calls and API Integration points that may be triggering multiple updates from the Node.js and Express 4 layer. HTML5 event flow and any jQuery or legacy bindings will be reviewed to remove overlap. Fixes are committed through Git with a focused Regression Testing step to prove stability. To reduce future risk, I document the root cause and adjust component patterns so state updates remain predictable as the app grows. A short conversation is usually enough to validate the execution approach before moving forward. Lance Full Stack Digital Director
$140 USD in 7 days
2.7
2.7

Hi there, The plan would be to reproduce the issue from your repo and Loom video, then trace the exact trigger: duplicate handlers, unstable dependencies in useEffect, stale closures in async calls, or event propagation causing multiple state updates. If the Express API contributes to race conditions or inconsistent responses, that will be patched as well, but the focus stays on restoring predictable client-side behavior. The fix will be minimal and clean, with no broad refactors. You’ll get: - A clear explanation of the root cause (commented code or short summary) - A pull request with the patched React (and API if needed) code - A simple regression test or repeatable steps proving the issue no longer occurs Comfortable debugging React 18 functional components, hook lifecycles, async flows, and event handling in production environments. Ready to start as soon as repo access and the Loom video are shared. Best regards, Daniel
$150 USD in 2 days
2.4
2.4

With over five years of experience specializing in frontend and backend development, I am confident I have the right expertise to ferret out the source of this truculent bug wreaking havoc with your React buttons. My background working with React, JavaScript, and Node means I am adept at navigating even the most convoluted codebase and acclimating myself quickly. Once I've identified the root of the problem, I will provide you with a clear summary or commented code—whichever you prefer—for easy reference. In addition to resolving the unsteady behavior of your buttons, I will ensure my solution is fully test covered to minimize any chances of regression. This aligns perfectly with my commitment to delivering clean code that's maintainable for the long haul. Moreover, as you mentioned your priorities lie predominantly in rectifying client-side behavior, I'll center my initial efforts there but will not hesitate to address issues stemming from the API layer either. Collaborating with me means more than just a one-off project – it signifies establishing a foundation for potential long-term growth. With meticulous attention to detail, strong problem-solving skills, and a deeply ingrained commitment to punctuality, I assure you a swift turnaround time without compromising quality. Let's commence on fixing this bug and ensuring your React app regains its predictability fully!
$50 USD in 1 day
2.0
2.0

Hi, I’m Zaid Rana, a Full-Stack Developer with hands-on experience in React 18, Node.js, and Express. I’ve debugged complex React hook issues before, including double renders, event propagation bugs, and async state inconsistencies. I’ve worked on production apps involving React functional components, API integrations, and real-time UI state fixes without breaking existing features. I can quickly isolate the root cause, implement a clean, test-covered fix, and ensure stable client-side behavior. I can also show you the projects i have worked on Best Regards Maaz Ahmed
$100 USD in 1 day
1.9
1.9

Hi, I'm a frontend developer with strong expertise in React 18, debugging client-side behavior, and modern JavaScript. I understand you're facing an unpredictable React button issue that requires systematic debugging. My approach: 1. Review your codebase structure and identify the problematic button component 2. Debug useEffect/useState timing issues and event propagation 3. Trace async calls hitting Express routes to find root cause 4. Implement a clean, test-covered fix without breaking other components I'm comfortable with your stack (React 18, hooks, Express 4, Node 18) and can provide repo access for collaborative debugging. I'll deliver a detailed explanation of the fault with patched code via pull request, plus regression tests. Let me know your turnaround time expectations and I can share a Loom video demo once we start. Looking forward to resolving this!
$140 USD in 7 days
0.9
0.9

Hi, I’ve worked on projects like this before, so what you’re describing makes sense to me. And I'm really interested in this project - Fix Unpredictable React Button Bug. I usually focus on getting things done cleanly and making sure they work properly in real use, not just on paper. I’m comfortable either improving an existing setup or helping build something new, depending on what stage you’re at. I keep communication straightforward, share progress along the way, and flag issues early so there are no surprises later. If you want, you can share a bit more about the current setup or the goal you’re trying to reach, and I can let you know how I’d approach it. Thanks, Jesse
$200 USD in 7 days
0.0
0.0

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