Object.defineProperty for all browsers?

Question

Asking about Object.defineProperty as demonstrated below:

function testComponent(){
    var testProperty;
    Object.defineProperty(this, \"testProperty\",
    {         


        

Answer 1

For older IEs you'd have to make sure your property is a dom object (even a fake tag) and use onPropertyChange to get notified. See this post by John Dyer for more details.