I've recently started an internship. My employer uses ruby on rails, and I frequently encounter new syntax that I need to look up to understand. I've googled around for a good explanation of named_scope, but what I've found so far is mostly blog posts giving high praise for it, rather a straight def...

...his code ? If you scroll down your page, let say 500PX. Go to another page and then back to initial page. Some browsers keep the scroll position and will bring you back down the page. Will you have a starting lastScrollTop at 0 or will it be properly initialised ?? – TCHdvlp ...

...e fastest, as there is no case-difference. "Ordinal" doesn't use culture and/or casing rules that are not applicable anyway on a symbol like a .. share | improve this answer | ...

In R, I have an element x and a vector v . I want to find the first index of an element in v that is equal to x . I know that one way to do this is: which(x == v)[[1]] , but that seems excessively inefficient. Is there a more direct way to do it? ...

I have this strange issue, and im dealing with it for more than 8 hours now.. Depending on situation i have to calculate UILabels size dynamically, e.g my UIViewController receives an event and i change UILabels size. from bigger to smaller. The size of my UILabel gets smaller and i ge...

...e Java Documentation : The iterators returned by this class's iterator and listIterator methods are fail-fast: if the list is structurally modified at any time after the iterator is created, in any way except through the iterator's own remove or add methods, the iterator will throw a Con...

...le on OS X (64-bit), because on that platform NSInteger is defined as long and is a 64-bit integer. The %i format, on the other hand, is for int, which is 32-bit. So the format and the actual parameter do not match in size. Since NSInteger is 32-bit or 64-bit, depending on the platform, the compile...

I started using git sometime back and do not fully understand the intricacies. My basic question here is to find out the difference between a git pull and git pull --rebase , since adding the --rebase option does not seem to do something very different : just does a pull. ...

...eve this is not the correct answer. Codepage incompatabilities are a pain, and Unicode is the cure for codepage problems. With cheap disk and memory nowadays, there is really no reason to waste time mucking around with code pages anymore. All modern operating systems and development platforms use U...

... git's diff is more functional than the standard unix diff. I often want to do this and since this question ranks highly on google, I want this answer to show up. This question: How to use git diff --color-words outside a Git repository? Shows how to use git to di...