Results for “require”
Small, practical examples. Search by task or narrow things down below.
Reject a negative quantity with CHECK
SQL Server: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.
SQL Server✓ Tested
Reject a negative quantity with CHECK
Postgres: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.
Postgres✓ Tested
Reject a negative quantity with CHECK
SQLite: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.
SQLite✓ Tested
Reject an integer with trailing characters
Arduino / C: strtol exposes an end pointer so a parser can require the entire token.
Arduino / C✓ Tested
Reject duplicate business identifiers
SQL Server: A UNIQUE constraint protects a business key independently of the primary key.
SQL Server✓ Tested
Reject duplicate business identifiers
Postgres: A UNIQUE constraint protects a business key independently of the primary key.
Postgres✓ Tested
Reject duplicate business identifiers
SQLite: A UNIQUE constraint protects a business key independently of the primary key.
SQLite✓ Tested
Reject NaN and infinite numeric inputs
Python: Use isfinite before computations that require an ordinary finite float.
Python✓ Tested
Reject NaN and infinite values
PowerShell: Double.IsFinite excludes numeric values unsuitable for ordinary bounded calculations.
PowerShell✓ Tested
Remove a filename extension
Keep the path while removing its final extension.
filename✓ Tested
Remove a known prefix with a shell pattern
Bash Scripts: The hash expansion removes the shortest matching prefix without changing the original variable.
Bash Scripts✓ Tested
Remove a Map entry and detect whether it existed
TypeScript: Map.delete returns true only when an entry was present.
TypeScript✓ Tested