: Proficiency in Responsive Web Design (RWD), accessibility (ARIA/WCAG), version control (Git), and browser developer tools .
: Use of task runners, build tools, package managers (like YARN), and scaffolding tools. Key Industry Context (2017) Front-end Developer Handbook 2017
: Briefly explains and categorizes the common "tools of the trade," from code editors to testing frameworks. Core Technologies and Skills : Proficiency in Responsive Web Design (RWD), accessibility