Simple Linear Regression + SHAP Tutorial
What is Linear Regression? Linear Regression is one of the simplest and most fundamental supervised machine learning algorithms. It tries to predict a continuous numerical value (the target) by finding…
Detailed Step-by-Step Tutorial: Building the KNN + Google Maps Flask App
We will build this project incrementally, explaining every piece of code as we go.You’ll see small code snippets first (with explanations), then at the very end I’ll give you the…
Mastering Angular Signals with a Real-World Notification Service
1. Why Signals for Notifications? Notifications (toasts, alerts, snackbars) are one of the sweet-spot use cases for signals because: The state is synchronous most of the time → we always…
Designing a GraphQL-Interface on a NodeJS/Express-Backend
This tutorial sets up a GraphQL server with Express, Node.js, and express-graphql to manage a list of books with CRUD operations, addressing the issue where the book(id: "1") query returns…
Form Validation with React
Start by setting up a new Vite project with React and JavaScript. Open your terminal and run the following commands to create the project and install the dependency for form…
Key Principles of modern Authentication in Web Applications
OAuth Standard Flow aka Code Flow The OAuth 2.0 standard flow, known as the Authorization Code Flow, is a secure protocol designed to enable third-party applications, referred to as clients,…
Authenticating your React App with OpenID
Welcome to this beginner’s guide to creating a React app using Vite! integrating OAuth/OpenID Authentication with a Node.js Express server at localhost:3000. This tutorial explains a React application that integrates with…
Authenticate your Angular App with Keycloak OpenID
Keycloak acts as the authorization server, issuing tokens. The Angular client uses standalone components for authentication and token management. The flow is Authorization Code Flow with PKCE for enhanced security.…
Building a Simple React App with Basic Authentication
Welcome to this beginner’s guide to creating a React app using Vite! This tutorial includes a navigation bar, login link, dashboard, and admin section, integrating Basic Authentication with a Node.js…
Building a Node.js Server with Basic Authentication Using Express.js
This tutorial shows how to create a Node.js server with Express.js in JavaScript, implementing Basic Authentication to secure a /user endpoint. The server authenticates users against a userlist.json file, supports…