Typescript versions of regular Debounce, and DebouncedPromised

debounce-typescript.ts

const debounce = <F extends (...args: any[]) => any>(fn: F, delay: number) => {
    let timeout: NodeJS.Timeout;
    const debounced = (...args: any[]) => {
        clearTimeout(timeout);
        timeout = setTimeout(() => fn(...args), delay);
    };

    return debounced as (...args: Parameters<F>) => ReturnType<F>;
};
    
const debouncePromise = <F extends (...args: any[]) => any>(fn: F, delay: number) => {
    let timeout: NodeJS.Timeout;
    return (...args: Parameters<F>): Promise<ReturnType<F>> =>
        new Promise((resolve) => {
            clearTimeout(timeout);
            timeout = setTimeout(() => resolve(fn(...args)), delay);
        });