Results for “Array operations”
Small, practical examples. Search by task or narrow things down below.
Remove duplicate values while keeping the smallest key
SQL Server: Identify retained keys in a grouped subquery before deleting other copies.
SQL Server✓ Tested
Remove duplicate values while keeping the smallest key
Postgres: Identify retained keys in a grouped subquery before deleting other copies.
Postgres✓ Tested
Remove duplicate values while keeping the smallest key
SQLite: Identify retained keys in a grouped subquery before deleting other copies.
SQLite✓ Tested
Rename a file in its current directory
PowerShell: Rename-Item changes the name without moving the item to another directory.
PowerShell✓ Tested
Rename a file within a directory
Python: Use Path.rename and inspect the resulting path.
Python✓ Tested
Rename a known file through filesystem
C++: filesystem::rename reports an error by exception when the operation fails.
C++✓ Tested
Replace a path extension
C#: Path.ChangeExtension transforms a path string without moving or creating a file.
C#✓ Tested
Retrieve the smallest queued value first
Java: PriorityQueue poll removes the smallest value under the natural ordering.
Java✓ Tested
Return a collection as one pipeline object
PowerShell: The unary comma prevents the returned array from being enumerated at this boundary.
PowerShell✓ Tested
Return the first item with a generic function
Preserve the element type while allowing empty arrays.
generics✓ Tested
Reverse a copy while preserving the original
JavaScript: Copy before reverse because reverse mutates the array it receives.
JavaScript✓ Tested
Reverse a copy while preserving the original
TypeScript: Copy before reverse because reverse mutates the array it receives.
TypeScript✓ Tested