Results for “du”
Small, practical examples. Search by task or narrow things down below.
Find shared members of two sets
TypeScript: Filter one set through the other set’s membership test.
TypeScript✓ Tested
Find the final day of a month
TypeScript: Day zero of the following UTC month selects the previous month’s final day.
TypeScript✓ Tested
Find the first matching array item
TypeScript: find returns undefined when no item satisfies the predicate.
TypeScript✓ Tested
Find the position of a matching item
TypeScript: findIndex returns -1 when the predicate matches nothing.
TypeScript✓ Tested
Find values missing from another collection
C#: Except removes duplicates as it calculates the set difference.
C#✓ Tested
Find what remains after division
TypeScript: Use the remainder operator to count items left after forming complete groups.
TypeScript✓ Tested
Flatten a single nesting level
TypeScript: flat defaults to a depth of one and creates a new array.
TypeScript✓ Tested
Format a timestamp with to_char
Produce a fixed numeric date string.
to_char✓ Tested
Generate a bounded integer range
TypeScript: Array.from supplies each output position to its mapping function.
TypeScript✓ Tested
Generate combinations across two collections
Python: Use product for a Cartesian product; this differs from selecting combinations within one collection.
Python✓ Tested
Generate every combination of two sets
SQL: CROSS JOIN creates one result per possible pair, so the output size is the product of the input sizes.
SQL✓ Tested
Generate every combination of two sets
SQL Server: CROSS JOIN creates one result per possible pair, so the output size is the product of the input sizes.
SQL Server✓ Tested