simple debounce & throttle

debounce.ts

export const debounce: <T extends []>(fn: (...args: T) => void, wait: number) => (...args: T) => void = (fn, wait) => {
  let timeout = -1;
  return (...args) => {
    if (timeout !== -1) clearTimeout(timeout);
    timeout = setTimeout(() => {
      fn(...args);
    }, wait);
  };
};

throttle.ts

export const throttle: <T extends []>(fn: (...args: T) => void, wait: number) => (...args: T) => void = (fn, wait) => {
  let canRun = true;

  return (...args) => {
    if (!canRun) {
      return;
    }
    fn(...args);
    canRun = false;
    setTimeout(() => {
      canRun = true;
    }, wait);
  };
};