Cursor vs JavaScript Challenge

Introducing Cursor for iOS: the best way to build, review, and ship software from anywhere. Kick off and manage agents to implement changes, fix bugs, and keep projects moving forward while you're away from your desk. BUILD FROM ANYWHERE With Cursor in your pocket, you can start new work the moment inspiration strikes. Launch agents directly from your phone to implement features, investigate issues, or answer questions about your codebase. Track progress across long-running agents and review completed work no matter where you are. Cursor helps you think through complex problems with a deep understanding of your codebase. VERIFY WORK WITH DEMOS Agents can test changes in their own sandbox and iterate until they've validated their output. Cursor can produce artifacts like videos, screenshots, and logs, so you can quickly verify its work before moving to the next step. By giving agents their own virtual machines with full development environments, they are able to work more autonomously to create merge-ready PRs. POINT AND DRAW TO FIX Take a screenshot, circle an issue, and drop comments to give agents visual feedback directly on images. Cursor understands annotations and uses them as context to make precise updates. Visual inputs help shrink the distance between what you see and what the agent understands. This allows you to iterate faster when refining UI, fixing visual bugs, or communicating design changes. SHIP CODE FROM YOUR PHONE Review pull requests and inspect changes through a focused diff experience designed for mobile. From quick fixes to major features, Cursor makes it easy to move between files and commits. Understand what changed and merge high-quality code with confidence. TALK TO CURSOR Use voice mode to communicate what you want without typing. Brainstorm ideas, explain bugs, plan features, tackle a difficult technical challenge, or request changes out loud. Cursor turns conversations into actionable engineering work, allowing you to stay in flow and capture ideas as they come to you. BUILT FOR MODERN SOFTWARE TEAMS Cursor is designed to help individuals and teams build ambitious software. Always use the best model for the task at hand with access to any frontier model from OpenAI, Anthropic, Google, and more. Cursor's own agentic model, Composer, delivers frontier-level intelligence while optimizing for speed and token-efficiency. With Cursor for iOS, you can: • Launch coding agents from anywhere • Track and manage active engineering work • Review screenshots and videos of changes • Annotate images to provide visual feedback • Inspect diffs and merge pull requests • Talk to agents with voice conversations • Understand unfamiliar codebases faster Whether you’re maintaining production systems or building your next side project, Cursor helps you turn your ideas into working software from anywhere. ——— Terms of Service: https://cursor.com/terms-of-service Privacy Policy: https://cursor.com/privacy © 2026 Anysphere, Inc.

Feed your brain. Level up. Learn to write real JavaScript by solving one puzzle at a time, right on your phone. JavaScript Challenge is a single path of original coding problems, from your first function to graphs, dynamic programming and beyond. Every solution runs on-device in real JavaScript and is checked against hidden tests, so passing means it actually works. One purchase, everything included: every challenge ships with the app. No subscription, no in-app purchases, no ads, no account. WRITE REAL CODE • A coder keyboard built for JavaScript: tab, brackets, quotes, snippets, undo • Instant feedback with named tests, expected vs actual output • Some levels enforce rules (no built-in array helpers, recursion required) so you learn the technique, not the shortcut LEARN THE RIGHT WAY • Three-tier hints from Rhino, your smug but surprisingly helpful mentor • Curated solutions after you solve: naive vs optimal, time and space complexity • Topics: strings, arrays, objects, closures, recursion, dynamic programming, sorting, searching, graphs, trees, hashing, bit tricks, grids, greedy strategies, intervals STAY MOTIVATED • One path, no shortcuts: easy → medium → hard, with performance tests on the hardest levels • XP, player levels, daily streaks and badges • Six themes, dark and light PRIVATE BY DESIGN • Works offline, no account — your code and progress stay on your device • Only anonymous usage statistics, never your code; no tracking, no ads