Results for “node”
Small, practical examples. Search by task or narrow things down below.
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
JavaScript: Return a fallback from catch so later handlers receive an ordinary resolved value.
JavaScript✓ 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
JavaScript: Map.delete returns true only when an entry was present.
JavaScript✓ Tested
Remove a Map entry and detect whether it existed
TypeScript: Map.delete returns true only when an entry was present.
TypeScript✓ Tested
Remove duplicate values
Use a JavaScript Set to preserve the first occurrence of each primitive value.
JavaScript✓ Tested
Remove duplicate values with a Set
Keep the first occurrence order while deduplicating.
Set✓ Tested
Reorder captured text in a replacement
JavaScript: Use numbered replacement groups to rearrange a known two-part name.
JavaScript✓ 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
JavaScript: Use a counted loop to print three numbered steps.
JavaScript✓ 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
JavaScript: String.repeat requires a nonnegative finite repetition count.
JavaScript✓ Tested