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Safari has a very useful Debug menu for checking Javascript errors, viewing a page’s DOM tree, changing its User Agent string, and much more. Unfortunately, it’s disabled by default, so many users never even know about it.To enable it, open a terminal window a...

Error levels name value description example 1 example 2 E_ERROR 1 Fatal run-time errors notdefined(); E_WARNING 2 Run-time warnings 1 / 0; E_PARSE 4 Compile-time parse errors +-; E_eval(‘+-;’); E_NOTICE 8 Run-time notic...

This was contributed by a colleague from UCI, Harry Mangalam.Having spent 3 days debugging this, I thought I might make it easier for others who might run into it.SAS 9.2 uses Java for at least some of its plotting routines (minimally the ‘ods graphics’).The 6...

SeleniumSelenium is an open-source web application testing system that records and generates testing scripts that can be used for debugging purposes. Selenium IDE is a Mozilla Firefox plugin that enables users to easily create testing scripts by directly reco...