--- jsonUrl: '/jsons/roadmaps/javascript.json' pdfUrl: '/pdfs/roadmaps/javascript.pdf' renderer: 'editor' order: 5 briefTitle: 'JavaScript' briefDescription: 'Step by step guide to learn JavaScript in 2025' title: 'JavaScript Roadmap' description: 'Step by step guide to learn JavaScript in 2025' isNew: false hasTopics: true dimensions: width: 968 height: 2550 schema: headline: 'JavaScript Roadmap' description: 'Learn JavaScript with this interactive step by step guide in 2025. We also have resources and short descriptions attached to the roadmap items so you can get everything you want to learn in one place.' imageUrl: 'https://roadmap.sh/roadmaps/javascript.png' datePublished: '2023-01-05' dateModified: '2023-01-20' question: title: 'What is JavaScript?' description: | JavaScript is a very flexible and versatile programming language, considered as a core technology for web development. This is because it is the only language natively supported by all browsers, allowing developers to add dynamic behavior and create complex user experiences with this language. Because of its flexibility and portability, JavaScript is also widely used for back-end development (thanks to runtimes such as Node.js, Bun, and Deno) and even server-side scripting (for automation and for creating developer tools). ## What does a JavaScript developer do? A JavaScript developer writes and maintains code to build interactive web applications, back-end logic (usually RESTful APIs), or some automation work. If they're focused on front-end development, their work usually involves designing dynamic user interfaces and integrating them with REST APIs (usually) to connect with back-end systems. If, on the other hand, they're focused on back-end development, then most likely, they're spending most of their time developing APIs using a back-end framework like NextJS. seo: title: 'JavaScript Developer Roadmap: Step by step guide to learn JavaScript' description: 'Community driven, articles, resources, guides, interview questions, quizzes for javascript development. Learn to become a modern JavaScript developer by following the steps, skills, resources and guides listed in this roadmap.' keywords: - 'javascript guide 2024' - 'learn javascript' - 'step by step javascript guide' - 'javascript roadmap 2024' - 'javascript developer roadmap 2024' - 'guide to becoming a javascript developer' - 'javascript developer roadmap' - 'javascript roadmap' - 'become javascript developer' - 'javascript developer skills' - 'javascript skills test' - 'skills for javascript development' - 'learn javascript development' - 'what is javascript' - 'javascript quiz' - 'javascript interview questions' relatedRoadmaps: - 'nodejs' - 'typescript' - 'frontend' - 'backend' - 'react' - 'angular' - 'vue' relatedQuestions: - 'javascript' - 'react' sitemap: priority: 1 changefreq: 'monthly' tags: - 'roadmap' - 'main-sitemap' - 'skill-roadmap' ---