Results for “fold”
Small, practical examples. Search by task or narrow things down below.
Look up a map entry
Look up a map entry using a complete Go program with explicit sample inputs.
Go✓ Tested
Look up values in an associative array
Use named keys for a small in-memory configuration table.
dictionary✓ Tested
Loop over an array safely
Preserve spaces in array elements while iterating.
array✓ Tested
Loop over an inclusive range
Loop over an inclusive range in a complete Rust program using the standard library.
Rust✓ Tested
Make a Compose service’s filesystem read-only
Docker / Compose: Make a Compose service’s filesystem read-only in a small Compose file.
Docker / Compose✓ Tested
Make a pair of columns unique together
SQLite: A composite primary key permits repeated individual values while forbidding a duplicate combination.
SQLite✓ Tested
Make a script executable by its owner
Linux Commands: Add the owner execute bit without replacing all permission bits.
Linux Commands✓ Tested
Make a second copy of a practice file
Linux Commands: Make a second copy of a practice file using GNU/Linux commands in an empty practice directory.
Linux Commands✓ Tested
Map a command with switch
Map a command with switch using a complete Go program with explicit sample inputs.
Go✓ Tested
Match a known text prefix
SQLite: A percent wildcard matches zero or more characters following the prefix.
SQLite✓ Tested
Match a text prefix
SQLite: Use a percent wildcard after a known prefix.
SQLite✓ Tested
Match a whole word
Linux Commands: Use grep -w to exclude a matching substring inside a longer word.
Linux Commands✓ Tested