Performance Tip 2 - Avoid Expando
Browser
test(window)
test(new MyObject())
Mozilla 1.3/ G3
132 milliseconds
104 milliseconds
IE 5.2.2/ G3
1357 milliseconds
152 milliseconds
Safari Beta/ G3
1712 milliseconds
1687 milliseconds
Click the buttons to see the difference in performance.
test(window)
test(new MyObject())