Results for “Promise.all”
Small, practical examples. Search by task or narrow things down below.
Return zero for a sum over no rows
SQL: SUM produces NULL for an empty input; COALESCE supplies the desired reporting default.
SQL✓ Tested
Return zero for a sum over no rows
SQL Server: SUM produces NULL for an empty input; COALESCE supplies the desired reporting default.
SQL Server✓ Tested
Return zero for a sum over no rows
Postgres: SUM produces NULL for an empty input; COALESCE supplies the desired reporting default.
Postgres✓ Tested
Return zero for a sum over no rows
SQLite: SUM produces NULL for an empty input; COALESCE supplies the desired reporting default.
SQLite✓ Tested
Reuse an LED action with a function
Arduino / C: Put a short LED sequence in a named function and call it twice.
Arduino / C✓ Tested
Reuse controlled-input bindings
Reuse controlled-input bindings with a small React component and explicit browser behavior.
React✓ Tested
Reuse document-title synchronization
Reuse document-title synchronization with a small React component and explicit browser behavior.
React✓ Tested
Reuse event subscription cleanup
Reuse event subscription cleanup with a small React component and explicit browser behavior.
React✓ Tested
Reverse a string
Reverse a byte string in place with std::reverse.
C++✓ Tested
Reverse an array in place
Swap C array elements from opposite ends.
C✓ Tested
Rotate a nonempty array left by one element
C: Save the first item before shifting the remaining elements.
C✓ Tested
Rotate a sequence around a selected position
C++: rotate places the element at the middle iterator first while preserving the two segment orders.
C++✓ Tested