Lazy Loading Development Tutorials, Guides & Insights

The N+1 query problem is a common performance issue that occurs when Laravel executes unnecessary or repetitive database queries. This tutorial will help you identify and resolve N+1 query issues in your Laravel applications using eager loading, lazy loading, and debugging tools like Laravel Debugbar.

The N+1 query problem happens when your application executes one query to retrieve a parent dataset, followed by multiple additional queries to fetch related data for each parent record.

• Dependency Array: Ensure that you include only necessary dependencies in the dependency array to prevent unnecessary effect executions.
• Cleanup: Use cleanup functions in useEffect to avoid memory leaks, especially when dealing with subscriptions or event listeners.

import React, { useEffect } from 'react';

function EffectComponent({ userId }) {
  useEffect(() => {
    const fetchUserData = async () => {
      const response = await fetch(`/api/user/${userId}`);
      const data = await response.json();
      console.log(data);
    };

    fetchUserData();

    return () => {
      console.log('Cleanup code');
    };
  }, [userId]);

  return <div>User ID: {userId}</div>;
}

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