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Snippet Library.

Track Window Dimensions with a `useWindowSize` Hook

Implement a `useWindowSize` React hook to get real-time width and height of the browser window, enabling dynamic and responsive UI adjustments.

Retrieve Orders with Customer Details from Last 30 Days

Fetch recent customer orders, joining customer and order tables with a date-based filter for active or recent transactions.

Calculate Total Sales Per Product Category with Minimum Threshold

Summarize total revenue for each product category, filtering to show only categories that have achieved a minimum sales volume, using GROUP BY and HAVING.

Find Customers Who Have Placed No Orders

Identify and list customers who have registered but have not yet placed any orders, leveraging the EXISTS operator for efficient conditional filtering.

Calculate Running Total of Sales Using CTE

Compute a cumulative running total of daily sales using a Common Table Expression (CTE) to improve query readability and manage complex aggregations.

Upsert Data into a Table (Insert or Update)

Perform an upsert operation to either insert a new record or update an existing one if a unique constraint is violated, ensuring data integrity.

Implement Server-Side API Rate Limiting

Prevent abuse and control traffic to your API by implementing server-side rate limiting using middleware in Node.js with Express, ensuring fair resource usage.

Fetch and Display Paginated API Data

Learn to fetch and display paginated data from a REST API in a React application. Implement navigation buttons for previous and next pages to enhance user experience.

Verify Webhook Signatures for Security

Enhance webhook security by implementing signature verification in Node.js. Validate incoming requests to ensure they originate from trusted sources, preventing spoofing and tampering.

Optimize API Calls by Batching Requests

Improve application performance and reduce network overhead by batching multiple related API requests into a single optimized call using Promise.all in JavaScript.

Integrate GraphQL with React using Apollo Client

Seamlessly integrate GraphQL APIs into your React application using Apollo Client. Learn to perform queries and display data from your GraphQL endpoint efficiently.

Sanitize Text by Removing HTML Tags

Effectively remove all HTML tags from a string using a simple regular expression in JavaScript, useful for content sanitization.