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.

Skills you'll gain: Javascript, Event-Driven Programming, Web Development, HTML and CSS, Web Applications, Interactive Design, Debugging, Data Validation
Beginner · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Java Programming, Eclipse (Software), Java, Debugging, Integrated Development Environments, Object Oriented Programming (OOP), Data Structures, File Management, Development Environment, Software Design, Programming Principles, Problem Solving
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Java, File Management, Cascading Style Sheets (CSS), Extensible Markup Language (XML), Test Automation, Web Scraping, Apache, Web Development Tools, Data Import/Export, Verification And Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Development Environment, Web Applications, Software Development Tools, 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, Data Presentation, Data Visualization, Analytics, Digital Marketing, Keyword Research, Apache Hadoop, Data-Driven Decision-Making, Digital Advertising, Machine Learning Methods, Social Media Strategy, Customer Analysis, MarTech, Predictive Modeling
Beginner · Specialization · 3 - 6 Months

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

Infosec
Skills you'll gain: Authentications, Application Security, Open Web Application Security Project (OWASP), Secure Coding, Serverless Computing, Cryptography, Risk Management Framework, Threat Modeling, Cloud Security, Infrastructure Security, Package and Software Management, Node.JS, Web Applications, Javascript, Vulnerability Management, Cloud Services, Cloud Platforms, Web Development, Identity and Access Management, Vulnerability Assessments
Intermediate · Specialization · 1 - 3 Months

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: 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, Relational Databases, PostgreSQL, Java, User Interface (UI), Web Servers, SQL, Stored Procedure, Application Servers, Database Design, Databases
Beginner · Specialization · 3 - 6 Months

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

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

Skills you'll gain: Selenium (Software), Java Programming, Java, Test Automation, Scripting, Web Development Tools, Automation, Cascading Style Sheets (CSS), Debugging, Hypertext Markup Language (HTML)
Intermediate · Course · 3 - 6 Months