Results for “type checking”
Small, practical examples. Search by task or narrow things down below.
Remove a Map entry and detect whether it existed
TypeScript: Map.delete returns true only when an entry was present.
TypeScript✓ Tested
Reorder captured text in a replacement
TypeScript: Use numbered replacement groups to rearrange a known two-part name.
TypeScript✓ Tested
Repeat a fixed number of times
TypeScript: Use a counted loop to print three numbered steps.
TypeScript✓ Tested
Repeat a string a fixed number of times
TypeScript: String.repeat requires a nonnegative finite repetition count.
TypeScript✓ Tested
Repeat while a condition holds
TypeScript: Count down while a positive number remains, updating the loop variable on each iteration.
TypeScript✓ Tested
Replace an array segment in place
TypeScript: splice returns removed items and inserts replacements at the chosen position.
TypeScript✓ Tested
Replace one collection element
TypeScript: Update an existing element at a known valid index.
TypeScript✓ Tested
Require two conditions to be true
TypeScript: Combine a lower and an upper bound to check whether a value is in range.
TypeScript✓ Tested
Resolve a relative URL against a base
TypeScript: A trailing slash makes the final base path component a directory.
TypeScript✓ Tested
Return multiple named values from a method
C#: Named value tuples give lightweight field names without a separate class.
C#✓ Tested
Reverse a copy while preserving the original
TypeScript: Copy before reverse because reverse mutates the array it receives.
TypeScript✓ Tested
Run cleanup after a promise settles
TypeScript: finally runs after success or failure and normally preserves the original outcome.
TypeScript✓ Tested