Accelint Ts Performance

This is a systematic performance auditing tool that catches common JavaScript/TypeScript anti-patterns like chaining array methods, using Array.includes in loops instead of Sets, and placing try/catch blocks in hot paths. It's opinionated about auditing everything, not just obvious bottlenecks, since utilities and formatters often end up in hot paths despite looking simple. The workflow combines V8 profiling knowledge with practical patterns, showing before/after code with expected gains. The strongest aspect is its focus on algorithmic complexity first (O(n²) to O(n) beats any micro-optimization), though the extensive "never do this" list might feel heavy handed if you just want quick wins. Best used when you need to understand why code is slow, not just make it faster blindly.