A Math-Expression Parser in 250 Lines of JavaScript — Recursive Descent, Right-Associative ^, and -2^2 = -4
📰 Dev.to · SEN LLC
Learn to build a math-expression parser in JavaScript using recursive descent, handling right-associative operators and edge cases like -2^2 = -4
Action Steps
- Build a recursive descent parser to handle mathematical expressions
- Implement right-associative operators like ^
- Handle edge cases like -2^2 = -4 using operator precedence
- Test the parser with various mathematical expressions
- Optimize the parser for performance and readability
Who Needs to Know This
Developers and software engineers can benefit from this article to improve their skills in parsing mathematical expressions and handling edge cases in their applications
Key Insight
💡 Recursive descent parsing can effectively handle mathematical expressions with right-associative operators and edge cases
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📝 Build a math-expression parser in 250 lines of JavaScript! 🤯
Key Takeaways
Learn to build a math-expression parser in JavaScript using recursive descent, handling right-associative operators and edge cases like -2^2 = -4
Full Article
Every "math evaluator in N lines" article either uses shunting-yard (Dijkstra's stack-based RPN...
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