What is Hot Reload?
Automatically updating your app when you save code changes, without a full refresh
Why It Matters
Hot reload speeds up development by showing changes instantly while preserving app state
Real-World Example
Changing a button colour and seeing it update immediately without losing your form data
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Related Terms
Development Environment
Your local setup where you write and test code before deploying
Fast Refresh
React's improved hot reload that preserves component state while updating code
Full-stack
Working on both the frontend (what users see) and backend (the server and database) of an application
TypeScript
JavaScript with added type checking that catches errors before your code runs
JavaScript
The programming language that makes websites interactive and dynamic
Environment Variables
Secret settings stored outside your code, like passwords and API keys