Date Formatting for Specific Date ('Y-m-d')

// Close the database connection
db.close((err) => {
  if (err) {
    console.error('Error closing the database connection:', err.message);
  } else {
    console.log('Database connection closed.');
  }
});

• db.close(): Closes the database connection.
• The callback logs whether the closure was successful or if an error occurred.

<table>
  <tr>
    <th>Function</th>
    <th>Description</th>
    <th>Example</th>
  </tr>
  <tr>
    <td><code>_.chunk(array, size)
    Splits an array into groups of the specified size.
    _.chunk(['a', 'b', 'c', 'd'], 2) => [['a', 'b'], ['c', 'd']]
  
  
    _.debounce(func, wait)
    Creates a debounced function that delays invoking the provided function until after the specified wait time.
    _.debounce(() => console.log('Hello'), 1000)
  
  
    _.cloneDeep(value)
    Creates a deep clone of the provided value.
    _.cloneDeep({ a: 1, b: { c: 2 } }) => { a: 1, b: { c: 2 } }
  
  
    _.merge(object, sources)
    Merges two or more objects into one, combining their properties.
    _.merge({ a: 1 }, { b: 2 }) => { a: 1, b: 2 }
  
  
    _.uniq(array)
    Creates a duplicate-free version of an array.
    _.uniq([1, 2, 2, 3, 4, 4]) => [1, 2, 3, 4]
  

Underscore.js is a lightweight utility library similar to Lodash, providing useful functions for working with arrays, objects, and other data types.

MySQL is a popular open-source relational database management system used by developers and businesses worldwide. It supports a wide range of operations that allow you to create, manage, and manipulate data efficiently. This comprehensive cheatsheet covers essential MySQL commands and concepts, complete with examples presented in HTML tables for easy reference.

This MySQL cheatsheet provides a comprehensive overview of the most commonly used MySQL commands, complete with examples to help you quickly find the information you need. Whether you're creating and managing databases, writing queries, or handling transactions, this guide serves as a quick reference to help you work more efficiently with MySQL.

Run the migration to create the table:

php artisan migrate

Add the createBook function to main.go:

func createBook(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")
	var book Book
	_ = json.NewDecoder(r.Body).Decode(&book)
	book.ID = "b" + string(len(books)+1) // Simple ID generation
	books = append(books, book)
	json.NewEncoder(w).Encode(book)
}

Once you have a basic GraphQL server set up, you can explore more advanced features such as arguments, variables, and real-time subscriptions.

GraphQL allows you to pass arguments to fields and use variables in queries for dynamic data fetching.

   node index.js

Open a browser and go to http://localhost:4000/graphql. You'll see the Apollo GraphQL Playground, where you can test your queries and mutations.

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