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.

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

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

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

Digital Marketing Institute
Skills you'll gain: Data-Driven Decision-Making, Marketing Strategies, Data-Driven Marketing, Data Ethics, Data Strategy, Customer Analysis, Digital Analysis, Marketing Effectiveness, Marketing Planning, Strategic Decision-Making, Digital Marketing, Business Analytics, Marketing Analytics, Customer Insights, Performance Measurement, Marketing Strategy and Techniques, Customer experience strategy (CX), MarTech, Pay Per Click Advertising, Data Management
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: HubSpot CRM, Customer Relationship Management (CRM) Software, Customer Relationship Management, Customer Data Management, Email Marketing, Business Software, Customer Communications Management, Sales Pipelines, Dashboard, Account Management, Data Management, Customer Service, Marketing, Sales Operations, Team Building
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Web Analytics, Web Analytics and SEO, Marketing Analytics, Analytics, Technical Documentation, Data-Driven Marketing, Performance Analysis, Technical Communication, Performance Metric, Data Literacy, Data-Driven Decision-Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Development Environment, Integrated Development Environments, Software Installation, Web Analytics and SEO
Beginner · 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, Security Controls, Data Security, Key Management, Encryption, Database Management, Web Servers, Email Automation, User Provisioning, Systems Administration, System Configuration, Content Management
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: TypeScript, Object Oriented Design, Node.JS, Role-Based Access Control (RBAC), Object Oriented Programming (OOP), Webpack, React Redux, Back-End Web Development, React.js, Full-Stack Web Development, Web Development, MongoDB, Front-End Web Development, Javascript, Application Programming Interface (API), Software Design Patterns, API Design, Programming Principles, Software Development, Debugging
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Cucumber (Software), Selenium (Software), Apache Maven, Java, Java Programming, Object Oriented Programming (OOP), Issue Tracking, Build Tools, Test Automation, Behavior-Driven Development, Test Script Development, Test Case, Software Testing, Data Structures, Package and Software Management
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Search Engine Optimization, jQuery, Keyword Research, Application Deployment, Content Optimization, Program Development, Object Oriented Programming (OOP), Web Servers, Data Validation
Intermediate · Course · 1 - 4 Weeks