Results for “type checking”
Small, practical examples. Search by task or narrow things down below.
Adapt a layout to viewport orientation
CSS: The orientation query compares viewport dimensions rather than detecting a physical device type.
CSS✓ Tested
Assemble a big-endian 16-bit value
Arduino / C: Cast to an unsigned 16-bit type before shifting the high byte.
Arduino / C✓ Tested
Await an asynchronous method result
C#: Use Task<T> for an async operation with a typed result.
C#✓ Tested
Await several independent results
Preserve input order while awaiting multiple promises.
Promise.all✓ Tested
Calculate beyond the long integer range
Java: Use BigInteger when a fixed-width primitive type would overflow.
Java✓ Tested
Check the Gregorian leap-year rule
Java: Use Year.isLeap rather than checking divisibility by four alone.
Java✓ Tested
Compute beyond the fixed-width integer range
PowerShell: BigInteger keeps an exact result when ordinary integer types are too small.
PowerShell✓ Tested
Convert ASCII text to lowercase safely
C++: Cast each byte to unsigned char before using the cctype function.
C++✓ Tested
Convert ASCII text to lowercase safely
C: Cast to unsigned char before calling ctype functions on a possibly signed char.
C✓ Tested
Convert received ASCII letters to uppercase
Arduino / C: ctype functions should receive an unsigned character value.
Arduino / C✓ Tested
Count words using a Map
Update a keyed counter without losing its value type.
Map✓ Tested
Create a table and insert its first row
SQL: Define column types and a primary key, then insert one row using an explicit column list.
SQL✓ Tested