Replace javascript on a site with Greasemonkey

Question

does anyone know how to replace JavaScript on a site with Greasemonkey ie.

This is the default code:

var Test="1";

And i want to replace it like this on the page load:

var Test="2";

Thanks in advance!

Answer 1

假设Test是全局变量，请在用户脚本中尝试以下操作：

unsafeWindow.Test="2";