Results for “Small algorithms & bit operations”
Small, practical examples. Search by task or narrow things down below.
Read compressed text directly
Python: Open gzip data in text mode with an explicit encoding.
Python✓ Tested
Read date components in UTC
JavaScript: UTC accessors avoid differences caused by the machine’s local timezone.
JavaScript✓ Tested
Read date components in UTC
TypeScript: UTC accessors avoid differences caused by the machine’s local timezone.
TypeScript✓ Tested
Read the byte size of a regular file
C++: file_size reads filesystem metadata without loading file contents.
C++✓ Tested
Read the last array element
PowerShell: A negative array index counts backward from the end.
PowerShell✓ Tested
Remove an indexed element and compact the array
Bash Scripts: Unsetting an element leaves a gap; reassigning the values creates consecutive indices.
Bash Scripts✓ Tested
Remove collection items that satisfy a condition
Java: Use removeIf on a mutable collection to avoid changing it manually inside a for-each loop.
Java✓ Tested
Rename a file in its current directory
PowerShell: Rename-Item changes the name without moving the item to another directory.
PowerShell✓ Tested
Rename a file within a directory
Python: Use Path.rename and inspect the resulting path.
Python✓ Tested
Rename a known file through filesystem
C++: filesystem::rename reports an error by exception when the operation fails.
C++✓ Tested
Replace a path extension
C#: Path.ChangeExtension transforms a path string without moving or creating a file.
C#✓ Tested
Reverse a copy while preserving the source
PowerShell: Clone the array before using Array.Reverse because Reverse mutates its argument.
PowerShell✓ Tested