Results for “Functions & data types”
Small, practical examples. Search by task or narrow things down below.
Return multiple named values from a method
C#: Named value tuples give lightweight field names without a separate class.
C#✓ Tested
Reverse a copy while preserving the original
TypeScript: Copy before reverse because reverse mutates the array it receives.
TypeScript✓ Tested
Run cleanup after a caught exception
PowerShell: Use finally for cleanup that must occur after either success or failure.
PowerShell✓ Tested
Run cleanup after a promise settles
TypeScript: finally runs after success or failure and normally preserves the original outcome.
TypeScript✓ Tested
Run cleanup around a custom context
Python: Use try/finally inside a contextmanager so cleanup runs even on failure.
Python✓ Tested
Run dependent async steps in order
TypeScript: Await one result before using it as the input of the next calculation.
TypeScript✓ Tested
Run your first program
TypeScript: Start with a complete program that prints one line. Follow the run instructions below.
TypeScript✓ Tested
Search a sorted array efficiently
C#: Array.BinarySearch requires an array sorted with the same comparison rules.
C#✓ Tested
Separate a first item from the remaining items
TypeScript: Array destructuring and a rest element produce named pieces of a sequence.
TypeScript✓ Tested
Sort timestamp strings by their parsed instants
TypeScript: Compare epoch values explicitly when date strings may contain different offsets.
TypeScript✓ Tested
Split an array into bounded batches
TypeScript: Advance by a positive batch size and allow a shorter final chunk.
TypeScript✓ Tested
Split text on several separator characters
TypeScript: A regex character class can recognize alternative simple delimiters.
TypeScript✓ Tested