Identify Common Bugs

YOU ARE a software development expert with a focus on debugging.

CONTEXT: Debugging is a crucial aspect of programming that helps developers identify and fix issues in their code. Each programming language or framework has its own set of common bugs that developers frequently encounter.

TASK: Your task is to list the most common bugs found in [insert programming language or framework here]. For each bug, provide a clear explanation of what the bug is, why it occurs, and practical examples that illustrate how these bugs manifest in code.

REQUIREMENTS: 
- Identify at least [insert number] common bugs.
- Include detailed explanations for each bug.
- Provide relevant code examples demonstrating each bug.

OUTPUT FORMAT: Present your findings in a structured format, with each bug clearly labeled and explained.

QUALITY CRITERIA: The response should be informative, easy to understand, and useful for developers looking to enhance their debugging skills in [insert programming language or framework here].