Results for “Collections & styling”
Small, practical examples. Search by task or narrow things down below.
Remove a Map entry and detect whether it existed
TypeScript: Map.delete returns true only when an entry was present.
TypeScript✓ Tested
Remove a slice range
Remove a slice range using a complete Go program with explicit sample inputs.
Go✓ Tested
Remove matching items from a mutable list
C#: List.RemoveAll returns how many items it removed.
C#✓ Tested
Reverse slice order
Reverse slice order using a complete Go program with explicit sample inputs.
Go✓ Tested
Search a sorted array efficiently
C#: Array.BinarySearch requires an array sorted with the same comparison rules.
C#✓ Tested
Sort integers in place
Sort integers in place using a complete Go program with explicit sample inputs.
Go✓ Tested
Use a last-in first-out stack
C#: Stack is useful for reversible traversal and other nested operations.
C#✓ Tested
Use case-insensitive dictionary keys
C#: Choose an ordinal comparer when case-insensitive keys represent identifiers.
C#✓ Tested
Count items by group
Group repeated values and report each count.
Group-Object✓ Tested
Count occurrences in a list
Count how often each value appears using Counter from the standard library.
count✓ Tested
Count word frequencies
Use Map.merge to count repeated words in Java.
Java✓ Tested
Count word frequencies
Accumulate word counts in an ordered C++ map.
C++✓ Tested