How to access object properties containing special characters?

Question

I have a form DOM element:

var virDom = document.getElementsByTagName(\"form\")[0];

virDom has two fields with ID

Answer 1

Use bracket notation:

virDom['creditId']
virDom['pwdId..']

This applies to any object, and it is particularly useful for non-identifier-safe characters and also for accessing keys that you may not know ahead of time.