regular expressions

Regular expressions are patterns used to match and manipulate strings of text. They are used for searching, validating, and formatting text in programming and data processing tasks.

How do you handle data validation and sanitization in backend systems?

Data validation and sanitization are crucial processes in ensuring the integrity and security of backend systems. To handle data validation, we employ various techniques such as input filtering, data type checking, and regular expressions. Additionally, we implement server-side validation to double-check the data received from clients. When it comes to data sanitization, we use techniques like escaping, encoding, and parameterized queries to prevent SQL injections and other security vulnerabilities. By combining these methods, we ensure that only valid and sanitized data is processed in the backend systems.

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