debounce.ts

medium_debounce.ts

type Fn = (...args) => any;

function debounce(fn: Fn, delay: number = 200) {
  let timer: NodeJS.Timeout = null;
  
  return ((...args) => {
    if (timer) {
      clearTimeout(timer);
      timer = null;
    }
    
    timer = setTimeout(() => {}, delay);
  }) as Fn;
}