Results for “du”
Small, practical examples. Search by task or narrow things down below.
Read one character from serial input
Wait for an incoming byte without blocking the main loop.
Serial.available✓ Tested
Read the beginning of a text value
TypeScript: Extract or display the first three ASCII characters from a known nonempty string.
TypeScript✓ Tested
Read the final array item with a negative index
TypeScript: at supports negative positions counted from the end.
TypeScript✓ Tested
Read the first collection element
TypeScript: Access index zero only after establishing that the collection is nonempty.
TypeScript✓ Tested
Recover from an expected promise rejection
TypeScript: Return a fallback from catch so later handlers receive an ordinary resolved value.
TypeScript✓ Tested
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 an action a fixed number of times
Use a counter and delay for a simple finite sequence.
for loop✓ Tested
Repeat while a condition holds
TypeScript: Count down while a positive number remains, updating the loop variable on each iteration.
TypeScript✓ Tested
Replace a text file with an atomic rename
Prepare new content beside the target before renaming it into place.
atomic write✓ Tested