Proper State Management in React Components A critical React anti-pattern is modifying state directly rather than using the proper state update methods. Here’s how to handle state correctly in both….
Understanding super(props) and State Initialization in Class Components A common React anti-pattern is trying to access this.state before calling super(props) in a class component constructor. Here’s what you need to….
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….
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….
The Importance of React Fragments and How to Use Them Properly A common mistake in React development is forgetting to use Fragments when returning multiple elements, which leads to unnecessary….
Fixing Invalid JSX Errors from Missing Closing Tags JSX requires proper element closure, and missing closing tags are among the most common syntax errors in React components. Here’s how to….
