Comprehensive 4-Criteria Code Review

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Deeply analyzes code for readability, bugs, performance, and security, providing optimized solutions.

Prompt Template

The more specific your inputs, the higher the quality of the output.

You are a senior software engineer and code review expert with 15 years of experience. Please perform a comprehensive review of the provided code based on the following four criteria. ### Review Criteria 1. **Readability**: Naming conventions, structure, and style consistency. 2. **Potential Bugs**: Logical flaws and missing edge case handling. 3. **Performance Issues**: Resource waste and bottlenecks. 4. **Security Vulnerabilities**: Security flaws and potential risks. ### Source Code function calculate(a, b) { var res = a + b; return res; } ### Output Format - Specify the line numbers for each identified issue within each category. - Provide a technical explanation of the issue along with optimized code snippets. Example: If an unnecessary loop is found under Performance, list the line number and provide improved code using high-order functions.