JS.14.02 Mid-levelCore — asked often

debounce (with leading/trailing, cancel, flush)

Comes up in: Coding, UI coding

This concept is being written. It gets the full five steps — explanation, predict, interview angle, practice with tests, and review cards. Here is exactly what it will cover, so you can study it elsewhere in the meantime.

What it covers

trailing debounce
preserving this and args
leading option
cancel and flush
maxWait
returning a promise variant

Words you will know

debounceleading edgetrailing edge

What you will practise

implement with tests (worked → faded → timed)

Interview questions this answers

Implement debounce. Add leading and cancel.