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JavaScriptBeginner#arrays
JavaScriptAdvanced#performance#functions
What is debouncing and throttling?
Debouncing delays the call until activity stops for a set time — good for search inputs. Throttling guarantees at most one call per interval — good for scroll and resize handlers.
Example
function debounce(fn, ms) {
let t;
return (...a) => { clearTimeout(t); t = setTimeout(() => fn(...a), ms); };
}
input.oninput = debounce(search, 300);