Function debounce

github-gist-copier/github-gist-copier.user.js:126–136

(f, delay)

    const compactGist = true
    function noop() { }
    function debounce(f, delay) {
        let timeoutId = null
        return function (...args) {
            if (timeoutId) {
                clearTimeout(timeoutId)
            }
            timeoutId = setTimeout(() => {
                f.apply(this, args)
            }, delay)
        }
    }

    function createCopyButton(fileElement) {
        const fileActionElement = fileElement.querySelector('.file-actions')