Results for “fold”
Small, practical examples. Search by task or narrow things down below.
Return text from a shell function
Capture a function’s output with command substitution.
function✓ Tested
Return two values from a function
Return two values from a function using a complete Go program with explicit sample inputs.
Go✓ Tested
Return zero for a sum over no rows
SQLite: SUM produces NULL for an empty input; COALESCE supplies the desired reporting default.
SQLite✓ Tested
Reverse slice order
Reverse slice order using a complete Go program with explicit sample inputs.
Go✓ Tested
Round and format a decimal value
Round and format a decimal value in a complete Rust program using the standard library.
Rust✓ Tested
Round down to a whole minute
Round down to a whole minute using a complete Go program with explicit sample inputs.
Go✓ Tested
Run a command safely for each matching file
Linux Commands: Use find -exec with argument placeholders so spaces in filenames remain intact.
Linux Commands✓ Tested
Run a Compose service as a numeric user
Docker / Compose: Run a Compose service as a numeric user in a small Compose file.
Docker / Compose✓ Tested
Run a first SELECT query
SQLite: Return a literal value without creating a table.
SQLite✓ Tested
Run an image as a non-root user
Choose an unprivileged numeric identity for the default process.
Dockerfile✓ Tested
Run cleanup when a function returns
Run cleanup when a function returns using a complete Go program with explicit sample inputs.
Go✓ Tested
Run your first Go program
Run your first Go program using a complete Go program with explicit sample inputs.
Go✓ Tested