Cursor
ui
Button onClick Handler Not Firing After Changes
Buttons that were previously clickable no longer trigger their onClick handlers after Cursor refactored the component code. Users click buttons but nothing happens.
Event handler binding or attachment may have been broken.
Error Messages You Might See
handleClick is not a function
Button click not working
No response to click
Event handler undefined
Common Causes
- onClick handler removed from JSX button element
- Handler function moved but not imported/referenced
- Handler function syntax changed (arrow vs function declaration)
- onClick handler wrapping code removed in refactoring
- Event handler 'this' context lost in class component
How to Fix It
Verify onClick is set: <button onClick={handleClick}>. Arrow functions preserve 'this': const handleClick = () => {}. In class, bind: this.handleClick = this.handleClick.bind(this). Check handler function exists and is imported.
Real developers can help you.
Costea Adrian
Embedded Engineer specilizing in perception systems. Latest project was a adas camera calibration system.
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
Tejas Chokhawala
Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript.
Focused on performance, clean architecture and shipping fast.
Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools.
Jared Hasson
Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever
Richard McSorley
Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures.
Meïr Ankri
Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews.
MFox
Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking.
Jaime Orts-Caroff
I'm a Senior Android developer, open to work in various fields
Jen Jacobsen
I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses.
I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain.
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
How do I pass arguments to onClick?
Use arrow function: onClick={() => handleClick(arg)}. Or bind in constructor.
Why is 'this' undefined in my handler?
Bind it: onClick={this.handleClick.bind(this)} or use arrow function in class.