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.
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
Milan Surelia
Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems.
Expertise:
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Notable Achievements:
🎯 Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX.
🚀 Launched Compose101 — a Jetpack Compose starter kit to speed up Android development.
🌟 Open source contributions on Github & StackOverflow for Flutter & Dart
🎖️ Worked on improving app performance and user experience with smart solutions.
Milan is always happy to connect, work on new ideas, and explore the latest in technology.
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As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience.
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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.
Nam Tran
10 years as fullstack developer
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.