All trainings

37 trainings — every one ends with a quiz and a printable certificate.

JavaScriptBeginner

JavaScript Fundamentals: Values, Types & Control Flow

Start from zero: how JavaScript stores values, the quirks of its type system, and how to steer programs with conditionals and loops. The foundation everything else builds on.

4 sections · 5-question quiz · ~25 minStart →
JavaScriptIntermediate

Scope, Hoisting & Closures: How JavaScript Sees Your Variables

Why can a function remember variables after its parent has returned? Master lexical scope, hoisting, the TDZ, and closures — the concept behind every callback, module, and React hook.

4 sections · 5-question quiz · ~25 minStart →
JavaScriptIntermediate

Objects, Prototypes & Classes: JavaScript's Object Model

JavaScript doesn't have classical inheritance — it has prototype chains, with class syntax as sugar on top. Understand `this`, prototypes, and classes to read any codebase with confidence.

4 sections · 5-question quiz · ~30 minStart →
JavaScriptAdvanced

Asynchronous JavaScript: Callbacks, Promises & async/await

From callback hell to elegant async/await: how JavaScript models operations that finish later, how promises chain and fail, and how to run work in parallel safely.

4 sections · 5-question quiz · ~30 minStart →
JavaScriptAdvanced

The JavaScript Event Loop: How Single-Threaded JS Handles Concurrency

JavaScript is strictly single-threaded, yet it serves thousands of concurrent requests without freezing. Learn the call stack, Web APIs, callback queue, and the microtask vs. macrotask priority system that make it possible.

5 sections · 6-question quiz · ~20 minStart →
JavaBeginner

Java Fundamentals: Types, Control Flow & First Classes

Build a solid Java foundation: primitive and reference types, variables, conditionals and loops, your first classes and objects, and everyday arrays and collections.

4 sections · 5-question quiz · ~28 minStart →
JavaIntermediate

Java OOP & Collections: Inheritance, Generics & Exceptions

Go beyond basics: inheritance and interfaces, the Collections Framework in depth, generic type safety, and structured exception handling for production-quality code.

4 sections · 5-question quiz · ~32 minStart →
JavaAdvanced

Java Concurrency & Streams: Modern Parallel Java

Master the Streams API and Optional for expressive data processing, then tackle threads, ExecutorService, synchronization, and a practical overview of JVM memory for concurrent code.

4 sections · 5-question quiz · ~35 minStart →
Spring BootBeginner

Spring Boot Fundamentals: Starters, REST & Dependency Injection

Learn what Spring Boot brings to Java development: opinionated starters, auto-configuration, building REST APIs, externalized config, and core dependency injection with @Service and @Autowired.

4 sections · 5-question quiz · ~28 minStart →
Spring BootIntermediate

Spring Boot Data & Security: JPA, DTOs & Auth Basics

Connect to databases with Spring Data JPA, shape APIs with DTOs and validation, secure endpoints with Spring Security, and handle errors cleanly with @ControllerAdvice.

4 sections · 5-question quiz · ~32 minStart →
Spring BootAdvanced

Spring Boot Production: Profiles, Actuator, Testing & Resilience

Prepare Spring Boot services for real environments: profiles and externalized config, Actuator health checks, integration testing with @SpringBootTest and MockMvc, caching, async processing, and production hardening.

4 sections · 5-question quiz · ~35 minStart →
ReactBeginner

React Fundamentals: Components, JSX & State

Build your first React UI from scratch. Learn how components compose, how JSX maps to the DOM, and how props and useState let you create interactive interfaces without fighting the framework.

4 sections · 5-question quiz · ~25 minStart →
ReactIntermediate

React Hooks & Data: Effects, Context & Forms

Go beyond basic state. Master useEffect for side effects, build reusable custom hooks, handle forms the React way, share state with Context, and fetch data without race conditions or stale closures.

4 sections · 5-question quiz · ~30 minStart →
ReactAdvanced

React Performance Patterns: Memoization, Refs & Composition

Write React that scales. Learn when memoization actually helps, model complex state with useReducer, escape the DOM with refs and portals, peek at concurrent features, and avoid the performance traps that trip up experienced teams.

4 sections · 5-question quiz · ~35 minStart →
Next.jsBeginner

Next.js Fundamentals: App Router & Components

Start building with the Next.js App Router. Understand file-based routing, the split between Server and Client Components, client-side navigation with Link, static assets, and how environment variables keep secrets safe.

4 sections · 5-question quiz · ~25 minStart →
Next.jsIntermediate

Next.js Data & Routing: Dynamic Routes, APIs & Caching

Level up your Next.js apps with dynamic route segments, Route Handlers for REST APIs, Server Actions for mutations, fetch caching strategies, and metadata for search engines.

4 sections · 5-question quiz · ~30 minStart →
Next.jsAdvanced

Next.js Production: Middleware, Streaming & Deployment

Ship Next.js apps with confidence. Run edge middleware for redirects and auth gates, stream UI with Suspense, optimize images and fonts, handle errors gracefully, and understand deployment trade-offs.

4 sections · 5-question quiz · ~35 minStart →
AngularBeginner

Angular Fundamentals: Components, Templates & Data Binding

Learn how Angular applications are built from components and templates, how data flows between them with binding, how directives shape the DOM, and how services and dependency injection keep logic reusable — plus the modern shift from NgModules to standalone components.

4 sections · 5-question quiz · ~28 minStart →
AngularIntermediate

Angular Forms, Routing & Reactive Data Flow

Build validated reactive forms, navigate with the router and lazy-loaded feature modules, fetch data with HttpClient, and master RxJS patterns — Observables, map, switchMap, the async pipe — plus a practical introduction to signals.

4 sections · 5-question quiz · ~32 minStart →
AngularAdvanced

Advanced Angular: Change Detection, State & Production Patterns

Optimize rendering with OnPush change detection, intercept HTTP traffic globally, manage application state with NgRx or lightweight alternatives, improve performance with trackBy and lazy strategies, test with TestBed, and understand SSR with hydration.

4 sections · 5-question quiz · ~35 minStart →
SAPBeginner

SAP Fundamentals: ERP Landscape, Modules & Organization

Understand what SAP and ERP mean in an enterprise context, tour the core functional modules (FI, MM, SD, HR), compare S/4HANA with ECC, learn the organizational hierarchy from client to company code, and get introduced to Fiori and authorization concepts.

4 sections · 5-question quiz · ~28 minStart →
SAPIntermediate

SAP Business Processes & ABAP Essentials

Follow an end-to-end procure-to-pay process, distinguish master from transactional data, write your first ABAP queries and CDS view concepts, and compare working in SAP GUI versus modern Fiori applications.

4 sections · 5-question quiz · ~32 minStart →
SAPAdvanced

SAP Integration, BTP & Cloud Development

Connect SAP to the wider enterprise with OData and REST APIs, explore SAP Business Technology Platform services, understand IDoc and CPI integration patterns, learn ABAP RESTful Application Programming (RAP) basics, and follow security, transport, and monitoring discipline.

4 sections · 5-question quiz · ~35 minStart →
Indian AccountingBeginner

Indian Accounting Fundamentals: Equation, Double-Entry & GST Basics

Start with the accounting equation, double-entry bookkeeping, journals and ledgers, trial balance, Indian GAAP vs Ind AS, essential business documents, and a conceptual introduction to GST (CGST, SGST, IGST).

4 sections · 5-question quiz · ~28 minStart →
Indian AccountingIntermediate

Ind AS, Financial Statements, GST Returns & TDS

Intermediate Indian accounting: Ind AS concepts including fair value and Ind AS 115 revenue, preparing P&L, Balance Sheet and Cash Flow, GST returns and ITC, TDS overview, and Companies Act books-of-accounts requirements.

4 sections · 5-question quiz · ~32 minStart →
Indian AccountingAdvanced

Advanced Indian Accounting: Consolidation, Disclosures & Controls

Advanced topics for Indian finance professionals: group consolidation basics, related-party disclosures, audit trail expectations, management ratio analysis, Ind AS vs IFRS convergence notes, and internal control frameworks.

4 sections · 5-question quiz · ~35 minStart →
US AccountingBeginner

US Accounting Fundamentals: GAAP, Debits & Credits

Build a US accounting foundation: the accounting equation, double-entry bookkeeping, journal entries, GAAP and the FASB framework, financial statement introductions, and practical debits-and-credits exercises.

4 sections · 5-question quiz · ~27 minStart →
US AccountingIntermediate

US GAAP Intermediate: Revenue, Accruals & Business Tax

Intermediate US accounting: ASC 606 revenue recognition, accrual vs cash basis, adjusting entries, federal business tax concepts, payroll withholdings at a high level, and 10-K/10-Q reporting for public companies.

4 sections · 5-question quiz · ~32 minStart →
US AccountingAdvanced

Advanced US Accounting: Leases, Consolidation & SOX

Advanced US GAAP topics: ASC 842 leases, impairment testing, consolidation and equity method investments, internal controls and SOX overview, cash flow statement deep dive, and financial analysis metrics.

4 sections · 5-question quiz · ~35 minStart →
JavaIntermediate

Java Coding Test Prep: DSA Patterns That Actually Show Up

The handful of patterns behind most Java coding rounds: complexity analysis, array and string manipulation, HashMap counting, two pointers, sliding window, and recursion — each with idiomatic Java you can write under time pressure.

5 sections · 5-question quiz · ~40 minStart →
JavaIntermediate

Java Interview: Collections, equals/hashCode & API Traps

The theory round that follows every coding test — how HashMap really works, the equals/hashCode contract, choosing the right collection, Comparator chains, Optional, and the API gotchas interviewers love to probe.

5 sections · 5-question quiz · ~35 minStart →
JavaIntermediate

Java Interview: OOP, SOLID & Design Patterns

The design round: polymorphism and abstraction explained the way interviewers want to hear it, SOLID applied to real code, the handful of patterns that get asked, immutability, and generics.

4 sections · 5-question quiz · ~32 minStart →
JavaAdvanced

Java Interview: Concurrency, Memory Model & the JVM

The senior round: threads and executors, synchronized vs volatile vs atomics, the Java Memory Model, deadlock, CompletableFuture, plus JVM memory areas, garbage collection, and how to reason about a memory leak.

4 sections · 5-question quiz · ~38 minStart →
ReactIntermediate

React Interview: Rendering Model, Keys & Component Design

The theory round done properly — how React actually renders and reconciles, why keys matter, props vs state, controlled vs uncontrolled inputs, lifting state, and the composition patterns interviewers ask you to name.

4 sections · 5-question quiz · ~32 minStart →
ReactIntermediate

React Interview: Hooks Deep Dive & the Traps

Every hook you will be asked about and every trap that comes with it — batching, stale closures, effect dependencies and cleanup, useRef vs useState, useMemo vs useCallback, custom hooks, and the rules of hooks with the reason behind them.

4 sections · 5-question quiz · ~36 minStart →
ReactAdvanced

React Machine Coding Round: Build These Six Components

The hands-on round — debounced search with cancellation, a paginated list, an accessible modal, form validation, a stopwatch, and infinite scroll. Full working implementations plus what the interviewer is scoring.

4 sections · 5-question quiz · ~45 minStart →
ReactAdvanced

React Interview: State Management, Performance & Modern React

The senior round — Context and when it hurts, choosing a state library, diagnosing wasted re-renders with the Profiler, virtualization, error boundaries and Suspense, plus Server Components and what changed in React 18 and 19.

4 sections · 5-question quiz · ~38 minStart →