Promises Courses and Certifications

The Promises and Pitfalls of Open-source Agent Systems

Explore the potential and challenges of open-source AI agent systems, examining their performance compared to closed-source alternatives and key issues in evaluation and generalization.

• YouTube
• 58 minutes
• Self-Paced
• Free Video

Learn Multithreading with Modern C++

1740 ratings at Udemy

Learn how to write portable threaded C++ code which unleashes the power of modern multi-processor hardware!

• Udemy
• 9 hours 13 minutes
• Self-Paced
• Paid Course

JavaScript Pro: Mastering Advanced Concepts and Techniques

1648 ratings at Udemy

Level Up Your JS. Covers latest syntax, design patterns, functional programming, browser APIS, OOP, Canvas, and more!

• Udemy
• 19 hours 1 minute
• Self-Paced
• Paid Course

Back-end Application Development with Node.js and Express

87 ratings at edX

Develop Node.js and Express applications, create REST APIs, implement authentication, and gain hands-on experience through labs and a final project to enhance your back-end development skills.

• edX
• 3 weeks, 4-6 hours/week
• Self-Paced
• Free Online Course (Audit)

JavaScript Interview Questions - Coding Interview 2026

1252 ratings at Udemy

Prepare for next JavaScript coding interview by doing practice questions. Learn javascript skills & concepts.

• Udemy
• 3 hours 45 minutes
• Self-Paced
• Paid Course

Asynchronous JavaScript

1232 ratings at Udemy

Become an expert in Asynchronous JavaScript, Callbacks, Promises, Async/Await, Generators & The Event Loop

• Udemy
• 4 hours 39 minutes
• Self-Paced
• Paid Course

Scrimba Credential

Learn to work with APIs

19 ratings at Coursera

Master API development through hands-on projects building bots, blogs, games, and dashboards. Learn HTTP requests, REST APIs, async JavaScript, and data fetching to create dynamic web applications.

• Coursera
• 4 weeks, 10 hours/week
• Self-Paced
• Paid Course
• 4 courses

JavaScript 2019: JavaScript ES6 Certification Course

1081 ratings at Udemy

Earn the JavaScript Specialist Certification while Learning JavaScript ES6

• Udemy
• 6 hours 4 minutes
• Self-Paced
• Paid Course

Full-Stack React with Spring Boot: Unit 4

15 ratings at Coursera

Master full-stack development by building a React SPA that consumes Spring Boot REST APIs, covering fetch functions, promises, async/await, routing, and state management.

• Coursera
• 3 hours 47 minutes
• Self-Paced
• Paid Course

Scrimba

Async JavaScript

11 ratings at Coursera

Dive into non-blocking execution with promises, async/await, and callbacks. Master efficient web development techniques for seamless API calls and responsive user interfaces.

• Coursera
• 1 hour 21 minutes
• Self-Paced
• Paid Course

Packt Credential

Modern JavaScript from The Beginning [Second Edition]

5 ratings at Coursera

Master JavaScript from scratch, progressing from basic syntax to advanced concepts like asynchronous programming, DOM manipulation, and OOP, with practical projects to build real-world web applications.

• Coursera
• 4 weeks, 10 hours/week
• Self-Paced
• Paid Course
• 3 courses

Scrimba

Advanced JavaScript 2: Async JS, APIs, Operators, Objects

Enhance JavaScript skills with async programming, APIs, logical operators, and objects. Master async/await, promises, efficient coding techniques, and object manipulation through practical challenges.

• Coursera
• 3 hours 57 minutes
• Self-Paced
• Paid Course

Scrimba

Frontend Job Interview Questions

Elevate frontend interview skills with Dylan Israel. Cover key technical topics, optimize profiles, and learn job search strategies to excel in interviews and secure your dream position.

• Coursera
• 2 hours
• Self-Paced
• Paid Course

Scrimba

API Basics 4: Build a Personal Dashboard (Promise Rejection)

Create a dynamic, data-driven web dashboard using JavaScript, CSS, and API integrations. Learn Flexbox, Promises, and real-time data handling for cryptocurrency and weather information.

• Coursera
• 2 hours 37 minutes
• Self-Paced
• Paid Course

JavaScript Data and Applications

Enhance your knowledge of external data sources and asynchronous operations in JavaScript, building a Restaurant Ordering System while mastering modern features for APIs, data transformation, and state management.

• Coursera
• 1 day 4 hours 1 minute
• Self-Paced
• Paid Course