Some test results I’ve gotten a lot of good answers to this question–thanks folks–so I decided to run some tests and figure out which method is actually fastest. The five methods I tested are these: the “ContainsKey” method that I presented in the question the “TestForNull” method suggested by Aleksandar Dimitrov the “AtomicLong” method suggested … Read more
Most of the roles you see were defined as part of ARIA 1.0, and then later incorporated into HTML via supporting specs like HTML-AAM. Some of the new HTML5 elements (dialog, main, etc.) are even based on the original ARIA roles. http://www.w3.org/TR/wai-aria/ There are a few primary reasons to use roles in addition to your … Read more
I was going to write up my own explanation but this Wikipedia article pretty much sums it up. Here is the basic concept: Copy-on-write (sometimes referred to as “COW”) is an optimization strategy used in computer programming. The fundamental idea is that if multiple callers ask for resources which are initially indistinguishable, you can give them pointers … Read more