JavaScript (Computer program language) 15 Application software 14 Development 14 Design 10 Web site development 10 Web sites 9 Programming 7 Python (Computer program language) 7 HTML (Document markup language) 5 Java (Computer program language) 5 Machine learning 5 Mobile computing 5 Android (Electronic resource) 4 Data mining 4 Distributed processing 4 Electronic data processing 4 User interfaces (Computer systems) 4 Cascading style sheets 3 Computer software 3 Design and construction 3 Human-computer interaction 3 Internet programming 3 Open source software 3 iPhone (Smartphone) 3 Artificial intelligence 2 Cloud computing 2 Computer programming 2 Data processing 2 Database management 2 Electronic apparatus and appliances 2