Results for “fold”
Small, practical examples. Search by task or narrow things down below.
Trim surrounding whitespace
Trim surrounding whitespace using a complete Go program with explicit sample inputs.
Go✓ Tested
Trim whitespace around text
Trim whitespace around text in a complete Rust program using the standard library.
Rust✓ Tested
Try a channel receive without blocking
Try a channel receive without blocking using a complete Go program with explicit sample inputs.
Go✓ Tested
Turn a condition into a result label
SQLite: Use CASE to describe stock availability for each row.
SQLite✓ Tested
Turn known group values into columns
SQLite: Conditional aggregation gives a portable pivot when the category set is known.
SQLite✓ Tested
Understand default zero values
Understand default zero values using a complete Go program with explicit sample inputs.
Go✓ Tested
Undo a multi-row transfer atomically
SQLite: The first transaction commits the fixtures. Rolling back the second transaction restores both sides of the attempted transfer.
SQLite✓ Tested
Undo only the work after a savepoint
SQLite: After committing the fixtures, roll back a trial change while keeping earlier work in the second transaction.
SQLite✓ Tested
Update a row on conflict
Use a primary key to insert or update one value.
upsert✓ Tested
Update a value through a pointer
Update a value through a pointer using a complete Go program with explicit sample inputs.
Go✓ Tested
Update an atomic counter
Update an atomic counter in a complete Rust program using the standard library.
Rust✓ Tested
Update an existing map value
Update an existing map value in a complete Rust program using the standard library.
Rust✓ Tested