Glossary term
What is comparator? Meaning for developers
The function you give to sort: (a, b) => negative if a goes first, positive if b goes first, 0 if equal. For numbers, use (a, b) => a - b.
Learn it properly · DSALesson 18: Quick Sort, and When to Just Use .sort()Partitioning around a pivot, quickselect, and sorting numbers and objects correctly in JavaScript.