Deleting a window property in IE

Question

I can\'t find any information on this issue; why doesn\'t the following code work in IE?

window.x = 45;
delete window.x;
// or delete window[\'x\'];

Answer 1

Does this help?

window.x = 45;
alert(window.x);
window.x = null;

I tried this in IE and window.x did have a value, which proves it can be set. Setting the value to null is your best bet for clearing it out.