Results for “k”
Small, practical examples. Search by task or narrow things down below.
Look up a dictionary value
Use TryGetValue for a C# dictionary lookup with a fallback.
C#✓ Tested
Look up a map entry
Look up a map entry using a complete Go program with explicit sample inputs.
Go✓ Tested
Look up a map key
Use find to read a C++ map without inserting a missing key.
C++✓ Tested
Look up values in an associative array
Use named keys for a small in-memory configuration table.
dictionary✓ 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
SQL: A composite primary key permits repeated individual values while forbidding a duplicate combination.
SQL✓ Tested
Make a pair of columns unique together
SQL Server: A composite primary key permits repeated individual values while forbidding a duplicate combination.
SQL Server✓ Tested
Make a pair of columns unique together
Postgres: A composite primary key permits repeated individual values while forbidding a duplicate combination.
Postgres✓ 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
Make an inline element a block
CSS: Learn how to make an inline element a block in a complete browser example.
CSS✓ Tested