Results for “Text validation & encoding”
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 whitespace
Trim surrounding whitespace using a complete Go program with explicit sample inputs.
Go✓ Tested
Trim surrounding whitespace from an Arduino String
Arduino / C: String.trim modifies the object in place.
Arduino / C✓ Tested
Trim whitespace around a string
PowerShell: The Trim method removes surrounding whitespace while preserving the middle of the string.
PowerShell✓ Tested
Use a literal value in a regular expression
PowerShell: Regex.Escape prevents a literal dot or other metacharacter from changing the match.
PowerShell✓ 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 finite numeric value without coercion
JavaScript: Number.isFinite rejects numeric strings as well as NaN and infinity.
JavaScript✓ Tested
Validate a finite numeric value without coercion
TypeScript: Number.isFinite rejects numeric strings as well as NaN and infinity.
TypeScript✓ Tested