DOM Element Width before Appended to DOM

Question

I\'m sure the answer is no, but is it possible to determine the width of an element before it is appended to the DOM?

Once it\'s appended, I know I

Answer 1

Modified the code a bit. Here is a pure JS solution:

function measure(el, fn) {
    var pV = el.style.visibility, 
        pP = el.style.position;
        
    el.style.visibility = 'hidden';
    el.style.position = 'absolute';
    
    document.body.appendChild(el);
    var result = fn(el);
    el.parentNode.removeChild(el);
    
    el.style.visibility = pV;
    el.style.position = pP;
    return result;
}

var div = document.createElement('div');
div.innerHTML = "
Hello

";

alert(div.offsetHeight); // 0

alert(measure(div, function(el){return el.offsetHeight})); // 68