Results for “Ordering & set operations”
Small, practical examples. Search by task or narrow things down below.
Take an immutable list snapshot
Java: List.copyOf protects the snapshot from later changes to the source list.
Java✓ Tested
Test whether an array contains a value
PowerShell: The contains operator compares complete items rather than matching substrings.
PowerShell✓ Tested
Uncommit a local change and leave its edits unstaged
Git: A mixed reset resets the index while retaining working-file contents.
Git✓ Tested
Uncommit the latest local change while keeping it staged
Git: A soft reset moves the branch tip but preserves both index and working files.
Git✓ Tested
Update an existing map value
Update an existing map value in a complete Rust program using the standard library.
Rust✓ Tested
Use a deque as a FIFO queue
Java: Add at the tail and remove at the head using ArrayDeque.
Java✓ Tested
Use a deque as a stack
Java: Use push and pop for last-in, first-out behavior.
Java✓ Tested
Visit associative-array keys in a stable order
Bash Scripts: Associative arrays have no defined iteration order, so sort their keys explicitly.
Bash Scripts✓ Tested
Visit files recursively
Java: Close the stream returned by Files.walk and sort relative paths for stable output.
Java✓ Tested
Write and read binary bytes
Java: Use the byte-oriented Files methods when text encoding should not be involved.
Java✓ Tested
Write and read bytes without text conversion
C++: Use binary stream modes and check each I/O operation before consuming its result.
C++✓ Tested
Write and read raw bytes
C#: Use the byte-oriented file APIs when no text encoding should be applied.
C#✓ Tested