(() => {
    "use strict";
    let ageElements = document.getElementsByClassName("age-display")
    for (let i = 0; i < ageElements.length; i++) {
        ageElements[i].innerText = (Math.floor(((new Date()).getTime() - (new Date(2001, 3, 29)).getTime())
            / 1000 / 60 / 60 / 24 / 365))
            .toString()
    }
})()