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Answers by CoreUI Core Team

Explanations that go beyond quick fixes — helping developers understand the concepts behind problems, why they happen, and how to avoid them in the future.

How to build a login page in Angular

Build a login page in Angular with reactive forms, JWT authentication, and CoreUI components - from the creator of CoreUI.

How to use GraphQL in React

Use GraphQL in React with fetch for simple queries or Apollo Client for caching and reactive updates - from the creator of CoreUI.

How to remove sensitive data from Git history

Remove sensitive data like passwords and API keys from Git history using git filter-repo and BFG Repo Cleaner - from the creator of CoreUI.

How to integrate Stripe in Node.js

Integrate Stripe in Node.js to create payment intents, process charges, and handle webhooks securely - from the creator of CoreUI.

How to use ref() in Vue 3

Use ref() in Vue 3 Composition API to create reactive values for primitives, objects, and DOM elements - from the creator of CoreUI.

How to build a dashboard in Angular

Build an admin dashboard in Angular with CoreUI components, lazy-loaded routes, and a sidebar layout - from the creator of CoreUI.

How to use WebSockets in React

Use WebSockets in React with a custom hook to connect, send messages, and handle real-time updates - best practices from the creator of CoreUI.

How to build a payment API in Node.js

Build a payment API in Node.js with Stripe for payment intents, webhooks, and order fulfillment - a production-ready guide from the creator of CoreUI.

How to export data to Excel in Angular

Export data to Excel in Angular using SheetJS to generate real .xlsx files with formatting - a practical guide from the creator of CoreUI.

How to integrate PayPal in React

Integrate PayPal in React using the PayPal JS SDK and React PayPal components for one-time payments - a step-by-step guide from the creator of CoreUI.

How to build an e-commerce backend in Node.js

Build an e-commerce backend in Node.js with Express, Prisma, cart management, and order processing - from the creator of CoreUI.

How to export data to CSV in Angular

Export table data to CSV in Angular without libraries using Blob and anchor element - a practical technique from the creator of CoreUI.

How to rewrite Git history with git filter-repo

Rewrite Git history with git filter-repo to remove files, paths, or sensitive data faster and safer than filter-branch - from the creator of CoreUI.

How to build a weather API in Node.js

Build a weather API proxy in Node.js with Express that fetches, caches, and serves weather data from OpenWeatherMap - from the creator of CoreUI.

How to use reactive() in Vue 3

Use reactive() in Vue 3 Composition API to create deeply reactive objects and manage complex state - best practices from the creator of CoreUI.

How to download files in Angular

Download files in Angular by creating blob URLs, triggering anchor clicks, and handling server-streamed files - from the creator of CoreUI.

How to integrate Stripe in React

Integrate Stripe in React with Stripe.js and React Stripe.js to accept payments securely - step-by-step guide from the creator of CoreUI.

How to rewrite Git history with filter-branch

Rewrite Git history with git filter-branch to remove files, change emails, or transform commits - a complete guide from the creator of CoreUI.

How to build a notes API in Node.js

Build a notes REST API in Node.js with Express, Prisma, and user ownership - extend the todo pattern with authentication from the creator of CoreUI.

How to use setup() in Vue 3

Use the setup() function in Vue 3 Composition API to declare reactive state, computed properties, and lifecycle hooks - from the creator of CoreUI.

How to preview images before upload in Angular

Preview images before uploading in Angular using FileReader API with reactive forms - a user experience best practice from the creator of CoreUI.

How to build a checkout page in React

Build a checkout page in React with form validation, order summary, and payment intent creation - a practical guide from the creator of CoreUI.

How to clean Git history

Clean up messy Git history by squashing, rewording, dropping, and reordering commits with interactive rebase - from the creator of CoreUI.

How to build a todo API in Node.js

Build a CRUD todo REST API in Node.js with Express, Prisma, and input validation - a hands-on guide from the creator of CoreUI.

How to use defineComponent in Vue 3

Use defineComponent in Vue 3 for full TypeScript support and better IDE inference in Options API and Composition API components - from the creator of CoreUI.

How to upload files in Angular

Upload files in Angular using HttpClient with FormData, track upload progress, and validate file types - best practices from the creator of CoreUI.

How to build an e-commerce cart in React

Build a shopping cart in React with Context API and useReducer for state management - a practical guide from the creator of CoreUI.

How to squash commits in Git

Squash multiple commits into one in Git using interactive rebase - keep your history clean with techniques from the creator of CoreUI.

How to build a dashboard backend in Node.js

Build a Node.js dashboard backend with Express, authentication, and REST endpoints - a production-ready structure from the creator of CoreUI.

How to integrate Angular with GraphQL API

Integrate Angular with a GraphQL API using Apollo Client - set up queries, mutations, and caching with best practices from the creator of CoreUI.