In the modern development ecosystem—whether building web applications, mobile apps, or enterprise software—consistency, reusability, and scalability are vital. One of the most effective ways to achieve this across teams and….
Using key props incorrectly in .map() operations is a common React anti-pattern that can lead to performance issues, state bugs, and unexpected rendering behavior. Here’s how to properly handle keys….
Correct Function Handling in React Event Handlers A common React mistake is incorrectly passing functions to event handlers, which can cause immediate execution or other unexpected behavior. Here’s how to….
Handling JSX Return in Arrow Functions A common mistake when using arrow functions in React is forgetting parentheses when returning JSX, which can lead to unexpected behavior or syntax errors…..
Correct Variable Usage in JSX In JSX, you can’t directly assign variables or execute statements without wrapping them in curly braces {}. Here’s how to properly handle variable assignment and….
The Classic Problem (Pre-React 17) Before React 17, you needed to import React in every file using JSX because JSX was transformed into React.createElement() calls: Without this import, you’d get….
Handling Missing Component Exports in React A common mistake in React development is forgetting to export a component from its file, which leads to “Component not found” errors when trying….
Handling Multiple Default Exports in a Single File Having multiple default exports in one file is invalid JavaScript syntax and will cause errors. Here’s how to properly structure your exports:….
Properly Displaying Objects in JSX When you need to display an object’s contents in JSX, you can’t render the object directly. Here are the correct approaches: The Problem This doesn’t….
Avoiding Reserved Keywords as React Component Names Using JavaScript reserved keywords as component names can cause syntax errors and unexpected behavior. Here’s how to handle this properly: Common Problematic Component….
