English Courses

Advanced Built-In Data Structures and their Usage in Javascript

Master advanced JavaScript data structures like stacks, queues, binary search trees, and custom comparators through hands-on practice with real-world applications and practical implementations.

• CodeSignal
• 5 hours
• Self-Paced
• Free Certificate

Revisiting Software Design Patterns in JavaScript

Master essential software design patterns through hands-on JavaScript exercises, covering encapsulation, abstraction, polymorphism, and composition for building robust, flexible applications.

• CodeSignal
• 6 hours
• Self-Paced
• Free Certificate

Refactoring Code for Readability and Maintainability

Master essential code refactoring techniques to transform messy code into clean, maintainable solutions. Learn to identify code smells, apply OOP principles, and implement modular design patterns in JavaScript.

• CodeSignal
• 4 hours
• Self-Paced
• Free Certificate

Backward Compatibility in Software Development

Master backward compatibility techniques to extend software features while maintaining system stability, using design patterns, polymorphism, and practical JavaScript implementations.

• CodeSignal
• 4 hours
• Self-Paced
• Free Certificate

Interview Practice - Advanced Problem Solving

Master advanced problem-solving techniques through hands-on practice with complex programming challenges, focusing on system design, feature implementation, and technical interview preparation.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Microcredential

Introduction to SQL with an Online Shop

383 ratings at CodeSignal

Master SQL fundamentals through practical e-commerce data analysis, from basic queries to advanced functions, joins, and complex conditional logic for real-world business insights.

• CodeSignal
• 6 hours
• Self-Paced
• Free Certificate
• 4 courses

Revisiting JavaScript Basics

Master JavaScript fundamentals through hands-on exercises covering arrays, loops, conditionals, and string manipulation, with practical examples from space exploration and travel scenarios.

• CodeSignal
• 3 hours
• Self-Paced
• Free Certificate

Applying Simple Looping in Practice with JavaScript

Master JavaScript loops through hands-on practice with arrays, strings, and numbers. Apply techniques like center-outward traversal, character grouping, and reverse number operations to solve real coding challenges.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Practicing String Operations and Type Conversions in JavaScript

Master string manipulation and type conversion techniques in JavaScript through hands-on exercises focusing on text processing, time handling, and pattern matching.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Mastering Implementation of Advanced Loops in JavaScript

Master advanced JavaScript loops to handle complex data operations, string manipulations, game mechanics, and large number calculations with sophisticated programming techniques.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

JavaScript Coding Practice for Technical Interviews

Master JavaScript problem-solving through hands-on practice with array manipulation, string processing, and algorithmic challenges designed to strengthen technical interview preparation skills.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Microcredential

Advanced Coding Interview Preparation with JavaScript

369 ratings at CodeSignal

Master advanced JavaScript coding with in-depth coverage of algorithms, data structures, and problem-solving techniques - from multidimensional arrays to Map/Set implementations and efficient task decomposition.

• CodeSignal
• 18 hours
• Self-Paced
• Free Certificate
• 5 courses

Advanced Built-In Data Structures and their Usage

Master advanced data structures like sorted maps, queues, and stacks through hands-on Java programming examples, from implementing browser history to building task schedulers and order processing systems.

• CodeSignal
• 5 hours
• Self-Paced
• Free Certificate

Revisiting Software Design Patterns in Java

Master essential software design patterns through hands-on Java exercises, covering encapsulation, abstraction, polymorphism, and composition to build robust, flexible applications.

• CodeSignal
• 6 hours
• Self-Paced
• Free Certificate

Refactoring Code for Readability and Maintainability

Master essential code refactoring techniques to transform complex code into clean, maintainable solutions. Learn to identify code smells, apply OOP principles, and implement modular design patterns for improved software quality.

• CodeSignal
• 4 hours
• Self-Paced
• Free Certificate