Function waitForElement

tiktok-user-info/tiktok-user-info.user.js:522–529

(selector, callback)

    setInterval(checkProfileChange, 1000) // Interval for checking if user changed

    function waitForElement(selector, callback) {
        const el = document.querySelector(selector)
        if (el) {
            callback(el)
        } else {
            setTimeout(() => waitForElement(selector, callback), 500)
        }
    }

    function downloadProfilePicture(url, username) {
        const filename = `tiktok_profile_${username}_${Date.now()}.jpg`