Results for “Subqueries & ranked selection”
Small, practical examples. Search by task or narrow things down below.
Find the first matching array item
JavaScript: find returns undefined when no item satisfies the predicate.
JavaScript✓ 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
JavaScript: findIndex returns -1 when the predicate matches nothing.
JavaScript✓ Tested
Find the position of a matching item
TypeScript: findIndex returns -1 when the predicate matches nothing.
TypeScript✓ Tested
Iterate with array indices and values
JavaScript: entries provides each position and value without a separate counter.
JavaScript✓ Tested
Iterate with array indices and values
TypeScript: entries provides each position and value without a separate counter.
TypeScript✓ Tested
List all files stored in a commit
Git: ls-tree inspects the committed tree without relying on working files.
Git✓ Tested
List files changed by the current commit
Git: diff-tree exposes the paths changed between a commit and its parent.
Git✓ Tested
Pair corresponding array items by position
JavaScript: Validate equal lengths before zipping when missing counterparts would be an error.
JavaScript✓ Tested
Pair corresponding array items by position
TypeScript: Validate equal lengths before zipping when missing counterparts would be an error.
TypeScript✓ Tested
Read a complete commit message
Git: The B placeholder includes the subject and body without extra metadata.
Git✓ Tested
Read a file from the parent commit
Git: HEAD~1 names the first parent one generation before HEAD.
Git✓ Tested