# TryBugHunt

> TryBugHunt (https://trybughunt.com) is a free, zero-cost, interactive web platform teaching code debugging and comprehension to programmers and computer science students. All code execution runs 100% client-side in the user's browser using Pyodide (Python WebAssembly) and sandboxed Web Workers (JavaScript). No server executes user code.
> Full context and pattern definitions: https://trybughunt.com/llms-full.txt

## Core Practice Modes
- [Python Debugging Practice](https://trybughunt.com/path/python): Progressive debugging path teaching Python runtime failure patterns.
- [JavaScript Debugging Practice](https://trybughunt.com/path/javascript): Hands-on exercises diagnosing asynchronous and type errors in JavaScript.
- [Code Comprehension Lab](https://trybughunt.com/comprehension): Predict behavior and trace state in production-grade code without executing it.
- [Daily Bug Challenge](https://trybughunt.com/daily): One new real-world debugging challenge released every day.
- [Sprint Mode](https://trybughunt.com/sprint): Rapid-fire timed debugging sessions to build quick pattern recognition.
- [Code Review Interview Practice](https://trybughunt.com/practice/interview): Interview preparation focused on reviewing and finding bugs in AI-generated code.

## Diagnostic Guides
- [How to Read a Python & JavaScript Traceback](https://trybughunt.com/errors/how-to-read-a-traceback): Step-by-step diagnostic guide for reading stack traces bottom-up, isolating root causes, and filtering framework noise.
- [Error Guides Directory](https://trybughunt.com/errors): Exhaustive catalog of 69+ Python and JavaScript error guides with literal runtime symptoms, quick-fix checklists, and free practice challenges.

## Bug Patterns
- [Off-by-One Errors](https://trybughunt.com/bugs/off-by-one): Fencepost boundaries, loop limits, and half-open slice mistakes.
- [Null or Undefined Access](https://trybughunt.com/bugs/null-or-undefined): Dereferencing missing properties, KeyError, and AttributeError on None.
- [Logic Errors](https://trybughunt.com/bugs/logic-errors): Operator precedence, inverted conditionals, and accidental mutations.
- [Infinite Loops](https://trybughunt.com/bugs/infinite-loops): Missing termination conditions, broken iterators, and event listener loops.
- [Type Errors](https://trybughunt.com/bugs/type-errors): Incompatible operand operations, string vs int concatenation, and unhashable types.
- [Scope Errors](https://trybughunt.com/bugs/scope-errors): Variable shadowing, late closure binding in loops, and UnboundLocalError.
- [Async Race Conditions](https://trybughunt.com/bugs/async-race-conditions): Missing await keywords, Promise concurrency traps, and unhandled rejections.

## About & Authorship
- [About TryBugHunt](https://trybughunt.com/about): Philosophy, zero-cost architecture, and creator profile for Viram Choksi.