DOM courses can help you learn how browsers interpret and structure web pages through the Document Object Model. You can build skills in selecting and modifying elements, handling events, and updating content dynamically. Many courses introduce tools such as JavaScript, browser dev tools, and debugging methods that support creating interactive and responsive web experiences.

Scrimba
Skills you'll gain: React.js, UI Components, Front-End Web Development, Web Content Accessibility Guidelines, User Interface (UI), JavaScript Frameworks, Interaction Design, Web Development Tools, Event-Driven Programming, Web Frameworks, Cascading Style Sheets (CSS), Application Programming Interface (API)
Intermediate · Course · 3 - 6 Months

London Business School
Skills you'll gain: Digital Transformation, Business Transformation, Organizational Change, Technology Strategies, Change Management, Innovation, Thought Leadership, Business Strategy, Business Technologies, Emerging Technologies, Business Modeling, Operational Efficiency, Business Management
Intermediate · Course · 1 - 3 Months

University of London
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), Computer Programming, Programming Principles, Interactive Design, Program Development, File I/O, Command-Line Interface, Control Panels, Development Environment, Debugging
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model View Controller, Java Platform Enterprise Edition (J2EE), Back-End Web Development, Full-Stack Web Development, Server Side, Email Automation, Data Access, Apache Tomcat, Front-End Web Development, Java Programming, Web Design and Development, Databases, PostgreSQL, Relational Databases, Java, User Interface (UI), Web Design, Web Servers, Systems Development, Application Servers
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Bash (Scripting Language), Shell Script, Linux Commands, Command-Line Interface, Linux, Scripting, File I/O
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Development Environment, Web Analytics and SEO
Beginner · Course · 1 - 3 Months

University of Maryland, College Park
Skills you'll gain: Search Engine Marketing, Pay Per Click Advertising, Marketing Analytics, Search Engine Optimization, Web Analytics, Web Analytics and SEO, Online Advertising, Model Evaluation, Digital Marketing, Apache Hadoop, Data-Driven Decision-Making, Digital Advertising, Return On Investment, A/B Testing, Machine Learning Methods, Advertising, Analytics, Social Media Strategy, Marketing Automation, Predictive Modeling
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: HTML and CSS, Cloud Hosting, Web Development, Cloud Deployment, Responsive Web Design, Web Design, Web Content, Application Deployment, Typography, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cucumber (Software), Selenium (Software), Apache Maven, Java, Object Oriented Programming (OOP), Issue Tracking, Gherkin (Scripting Language), Test Automation, Behavior-Driven Development, Test Execution Engine, Test Case, Debugging, Integration Testing, Data Structures
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Email Security, File Management, Control Panels, Web Analytics and SEO, MySQL, Apache, Cloud Hosting, Public Key Infrastructure, User Accounts, Data Security, Encryption, Database Management, Web Servers, Email Automation, System Configuration, PHP (Scripting Language), Server Administration, Performance Tuning, Content Management, Data Storage
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), C and C++, Programming Principles, Computer Programming, Software Documentation, Functional Design, Computer Science, Maintainability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Ajax, Java Programming, Test Script Development, Java, Software Testing, Test Automation, Scripting, Web Development Tools, Object Oriented Programming (OOP), Automation, Debugging
Intermediate · Course · 3 - 6 Months