Salesforce Apex is an object-oriented programming language specifically designed for the Salesforce platform. It is similar to Java and is primarily used to implement custom business logic, automation, and integrations within Salesforce.
Cloud-based: Runs exclusively on Salesforce servers.
Java-like Syntax: If you know Java, you can learn Apex quickly.
Tightly Integrated with Salesforce Database (SOQL & SOSL): Enables direct data queries and manipulations.
Event-driven: Often executed through Salesforce triggers (e.g., record changes).
Governor Limits: Salesforce imposes limits (e.g., maximum SOQL queries per transaction) to maintain platform performance.
Triggers: Automate actions when records change.
Batch Processing: Handle large data sets in background jobs.
Web Services & API Integrations: Communicate with external systems.
Custom Controllers for Visualforce & Lightning: Control user interfaces.
Memcached is a distributed in-memory caching system commonly used to speed up web applications. It temporarily stores frequently requested data in RAM to avoid expensive database queries or API calls.
Key-Value Store: Data is stored as key-value pairs.
In-Memory: Runs entirely in RAM, making it extremely fast.
Distributed: Supports multiple servers (clusters) to distribute load.
Simple API: Provides basic operations like set, get, and delete.
Eviction Policy: Uses LRU (Least Recently Used) to remove old data when memory is full.
Caching Database Queries: Reduces load on databases like MySQL or PostgreSQL.
Session Management: Stores user sessions in scalable web applications.
Temporary Data Storage: Useful for API rate limiting or short-lived data caching.
Memcached: Faster for simple key-value caching, scales well horizontally.
Redis: Offers more features like persistence, lists, hashes, sets, and pub/sub messaging.
sudo apt update && sudo apt install memcached
sudo systemctl start memcachedIt can be used with PHP or Python via appropriate libraries.
A Single Page Application (SPA) is a web application that runs entirely within a single HTML page. Instead of reloading the entire page for each interaction, it dynamically updates the content using JavaScript, providing a smooth, app-like user experience.
✅ Faster interactions after the initial load
✅ Improved user experience (no full page reloads)
✅ Offline functionality possible via Service Workers
❌ Initial load time can be slow (large JavaScript bundle)
❌ SEO challenges (since content is often loaded dynamically)
❌ More complex implementation, especially for security and routing
Popular frameworks for SPAs include React, Angular, and Vue.js.
Jest is a JavaScript testing framework developed by Meta (Facebook). It is mainly used for testing JavaScript and TypeScript applications, especially React applications, but it also works well for Node.js backends.
// sum.js
function sum(a, b) {
return a + b;
}
module.exports = sum;
// sum.test.js
const sum = require('./sum');
test('addiert 1 + 2 und ergibt 3', () => {
expect(sum(1, 2)).toBe(3);
});o run the test, use:
jestOr, if installed locally in a project:
npx jestThe Model is the data and logic layer in the MVC architecture. It manages the application's data and ensures that it is correctly stored, retrieved, and processed.
✅ Data Management: Stores and handles data, often in a database.
✅ Business Logic: Contains rules and calculations (e.g., discount calculation for orders).
✅ Data Validation: Checks if input is correct (e.g., if an email address is valid).
✅ Database Communication: Performs CRUD operations (Create, Read, Update, Delete).
class BlogPost extends Model {
protected $fillable = ['title', 'content']; // Erlaubte Felder für Massenverarbeitung
// Beziehung: Ein Blogpost gehört zu einem Benutzer
public function user() {
return $this->belongsTo(User::class);
}
}🔹 fillable: Specifies which fields can be saved.
🔹 belongsTo(User::class): Indicates that each blog post belongs to a user.
✔ The Model handles all data and business logic of the application.
✔ It ensures a clear separation between data and presentation.
✔ Changes to the data structure only need to be made in the Model, not throughout the entire application.
Model-View-Controller (MVC) is a software architecture pattern that divides an application into three main components:
✔ Better maintainability through a clear separation of concerns.
✔ Reusability of components.
✔ Easy testability since logic is separated from the interface.
✔ Flexibility, as different views can be used for the same model.
MVC is widely used in web and desktop applications, including:
The Catalyst Framework is a flexible and powerful web framework for Perl. It enables the development of scalable and maintainable web applications and follows the Model-View-Controller (MVC) design pattern.
✅ MVC Architecture – Clear separation of business logic, presentation, and data management
✅ Flexibility – Supports various templating systems and ORM solutions like DBIx::Class
✅ Extensibility – Many plugins and modules available
✅ Asynchronous Capabilities – Can be integrated with event-driven architectures
✅ REST APIs & WebSockets – Support for modern web technologies
Beego is an open-source web framework written in programming language Go (Golang). It is widely used for building scalable web applications and APIs. Beego provides a comprehensive platform for developers to create both simple and complex applications quickly and efficiently.
Modular Design:
Built-in Web Server:
MVC Architecture:
Automatic Routing:
Integrated ORM:
Task Scheduler:
RESTful API Support:
Logging and Configuration:
If you're considering using Beego, it's worth evaluating your project requirements and comparing it with alternative frameworks such as Gin, Echo, or Fiber to determine the best fit.
Meteor is an open-source JavaScript framework that allows developers to quickly and easily build web and mobile applications. It was released in 2012 by the Meteor Development Group (MDG) and is designed to streamline the development process while unifying code for both the frontend and backend. Meteor is particularly useful for real-time applications due to its reactive architecture.
JavaScript Everywhere:
Real-Time Functionality:
Isomorphic Code:
Built-in Database Support:
Easy Integration:
Fast Development Process:
Meteor is an excellent framework for developers aiming to create reactive, cross-platform applications quickly. It’s particularly well-suited for projects where real-time updates and rapid development are priorities.
Next.js is a React-based framework that simplifies the development of modern web applications. Developed by Vercel, it provides a wide range of features beyond what the React library offers. Next.js is especially appealing to developers who want to create powerful, scalable, and SEO-friendly applications.
Hybrid Rendering:
API Routes:
Built-in Routing:
pages folder becomes a route, e.g.:
pages/index.js → /pages/about.js → /aboutImage Optimization:
next/image component optimizes images automatically with features like lazy loading, resizing, and WebP support.TypeScript Support:
Fast Refresh:
Middleware:
npx create-next-app).
Tailwind CSS
