Key skills for a Javascript developer include:
JavaScript Proficiency: Understanding of JavaScript’s intricacies.
JavaScript Frameworks: Knowledge of AngularJS, Node.js, or ReactJS.
HTML/CSS: Essential for interaction with web elements and styling.
ES6/ES2015 Knowledge: Familiarity with updated JavaScript standards.
Asynchronous Programming: Ability to handle callbacks, promises, async/await.
Server-Side Scripting: Beneficial for full-stack roles.
API Interaction: Understanding of AJAX and RESTful APIs.
Cross-Browser Compatibility: Ensuring JavaScript works across multiple browsers.
Testing/Debugging: Ability to use testing frameworks and debug efficiently.
Problem Solving: Critical for tackling new challenges.
Version Control/Git: Key for managing and tracking code changes.