Let’s Create Something Extraordinary

document.addEventListener("input",function(){ var code=document.getElementById("countryCode").value; var phone=document.getElementById("phoneVisible").value; document.getElementById("phoneHidden").value=code+" "+phone; }); document.getElementById("countryCode").addEventListener("change",function(){ var code=this.value; var phone=document.getElementById("phoneVisible").value; document.getElementById("phoneHidden").value=code+" "+phone; });