Results for “Strings & text”
Small, practical examples. Search by task or narrow things down below.
Treat an empty trimmed value as missing
SQL Server: NULLIF converts an empty string to NULL before a fallback is applied.
SQL Server✓ Tested
Treat an empty trimmed value as missing
Postgres: NULLIF converts an empty string to NULL before a fallback is applied.
Postgres✓ Tested
Treat an empty trimmed value as missing
SQLite: NULLIF converts an empty string to NULL before a fallback is applied.
SQLite✓ Tested
Trim and discard blank lines
JavaScript: Split a text block, trim each line, and keep nonempty values.
JavaScript✓ Tested
Trim and discard blank lines
TypeScript: Split a text block, trim each line, and keep nonempty values.
TypeScript✓ Tested
Trim surrounding ASCII whitespace
C++: Find the first and last non-whitespace bytes before taking a substring.
C++✓ Tested
Trim surrounding whitespace from an Arduino String
Arduino / C: String.trim modifies the object in place.
Arduino / C✓ Tested
Use React 19’s provider shorthand
Use React 19’s provider shorthand with a small React component and explicit browser behavior.
React✓ Tested
Validate a complete identifier
Java: String.matches requires the regular expression to match the entire input.
Java✓ Tested
Validate a complete identifier
C++: regex_match requires the pattern to match the complete input sequence.
C++✓ Tested
Validate a complete identifier with a regex
C#: Use absolute anchors and a timeout so the regex checks the complete input with a bounded execution time.
C#✓ Tested
Validate an entire identifier
Python: Use fullmatch so a regex must consume the complete input.
Python✓ Tested