JavaScript (Computer program language) 10 Development 8 Application software 7 Web applications 6 Web site development 5 Cascading style sheets 4 Design 4 Web sites 4 HTML (Document markup language) 3 Application program interfaces (Computer software) 2 Bootstrap (Computer program) 2 MongoDB 2 Node.js 2 AngularJS (Software framework) 1 Authoring programs 1 Computer programs 1 Express.js (Electronic resource) 1 PHP (Computer program language) 1