On both projects that I'm doing at work and home, I'm constantly having to disable eclipse verification on certain files and folders to save time. However, I cannot ever remember how to do it. So this post is a permanent reminder for myself.

The steps are actually quite simple, just do the following:

Right Click on the project in the Package Explorer (or similar view) and select Properties.
Navigate the tree on the left to JavaScript->Include Path.
Select the Source tab at the top.
Expand both of the JS folders.
Click the Excluded under the project you are working in and click Edit.... This will launch a new dialog.
In Exclusion Patterns, click Add.
Enter an ant path that you want to exclude. For example, if you don't want to compile all of the Ext JS resources in the ext-4.1 every time you make a change, add the text: **/ext-4.1/**

This should be it! You're now saving tons of time daily by not having to your excluded resources when you make an unrelated change.