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What is Scala's yield?
... @Eldritch Conundrum - Which interestingly enough is the same order in which the original SQL spec outlines. Somewhere along the way the SQL language inverted the order, but it makes complete sense to first describe what you are pulling from followed by what you expect to get out of it...
How to convert a factor to integer\numeric without loss of information?
... trivial since you also put the as.numeric() and as.character() in a wrong order ;) What your code chunk does is to turn the factor's level index into a character matrix, so what you will have at the and is a character vector that contains some numbers that has been once assigned to certain level of...
What is LINQ and what does it do? [closed]
...or collection and iterator manipulation that makes extensive use of higher-order functions as arguments (System.Linq)
a library for passing and manipulation of simple functions as abstract syntax trees (System.Linq.Expressions)
a syntax extension to various languages to provide a more SQL-like synta...
When is a function too long? [closed]
...
Here is a list of red-flags (in no particular order) that could indicate that a function is too long:
Deeply nested control structures: e.g. for-loops 3 levels deep or even just 2 levels deep with nested if-statements that have complex conditions.
Too many state-defini...
what is the use of xsi:schemaLocation?
... read the schemaLocation values and try to load them from the internet, in order to validate the XML file. Spring, in turn, intercepts those load requests and serves up versions from inside its own JAR files.
If you omit the schemaLocation, then the XML parser won't know where to get the schema in ...
Merge multiple lines (two blocks) in Vim
...returning its first element. This lets us replace the deleted lines in the order in which we read them. We could instead replace the deleted lines in reverse order by using remove(l,-1).
share
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imp...
What is offsetHeight, clientHeight, scrollHeight?
...ent in pixels, including padding but not the horizontal scrollbar height, border, or margin
offsetHeight:
is a measurement which includes the element borders, the element vertical padding, the element horizontal scrollbar (if present, if rendered) and the element CSS height.
scrollHeight:
...
How do I get the APK of an installed app without root access?
...read permission means you cannot obtain a listing of its contents -- so in order to access it you must know the name of the file that you will be accessing. Android's package manager will tell you the name of the stored apk for a given package.
To do this from the command line, use adb shell pm lis...
“Unknown provider: aProvider
...e:
DI annotation missing
DI annotation incomplete
DI annotation in wrong order
Keeping the annotations up-to-date is simply a pain in the ass and you shouldn't have to do it if it can be done automatically. ng-annotate does exactly that.
It should integrate nicely into your build process with g...
What's the difference between git reflog and log?
...te.)
git reflog doesn't traverse HEAD's ancestry at all. The reflog is an ordered list of the commits that HEAD has pointed to: it's undo history for your repo. The reflog isn't part of the repo itself (it's stored separately to the commits themselves) and isn't included in pushes, fetches or clone...