Results for “Promise.all”
Small, practical examples. Search by task or narrow things down below.
Test whether an unsigned value is a power of two
C: A nonzero power of two has exactly one set bit.
C✓ Tested
Wait for several deferred values
jQuery: when resolves only after every supplied deferred has resolved.
jQuery✓ Tested
Wrap a collection in one shared parent
jQuery: wrapAll places all selected elements inside one wrapper.
jQuery✓ Tested
Add a fixed hostname mapping
Docker / Compose: extra_hosts adds an entry to the container’s hosts file.
Docker / Compose✓ Tested
Add an optional field to an existing table
SQL: A nullable column permits existing rows to remain valid while data is filled later.
SQL✓ Tested
Add an optional field to an existing table
SQL Server: A nullable column permits existing rows to remain valid while data is filled later.
SQL Server✓ Tested
Add an optional field to an existing table
Postgres: A nullable column permits existing rows to remain valid while data is filled later.
Postgres✓ Tested
Add an optional field to an existing table
SQLite: A nullable column permits existing rows to remain valid while data is filled later.
SQLite✓ Tested
Add and remove values at both ends
C++: Deque supports efficient end operations without requiring contiguous storage.
C++✓ Tested
Advance a date by a number of days
Python: Use timedelta so month and year boundaries are handled automatically.
Python✓ Tested
Announce a status update politely
Announce a status update politely with a small React component and explicit browser behavior.
React✓ Tested
Append text only when the destination has enough capacity
C: Check the combined lengths including the terminator before using strcat.
C✓ Tested