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Vim clear last search highlighting
...ters that hold text, sometimes for yanked data, sometimes for last search, etc. When you do a search, vim puts the pattern in the "/" register, which you reference using @/. You can also assign values to registers using @regname=value where regname is the is the name of the register. So, @/="" is si...
How to check if std::map contains a key without doing insert?
...'s when coders succumb to the trap of paying costs in readability/dev time/etc, all for unmeasured "performance gains" that the premature optimization rhetoric becomes the right advice to give.
– VoidStar
Feb 24 '14 at 10:52
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event Action vs event EventHandler
...w allows for customized accessibility to subscription based on user roles, etc. Can you do that with lambdas? (Actually you can by custom compiling expression trees, but that's beyond the scope of this response).
To address a couple of points from some of the responses here:
There really is no di...
getting type T from IEnumerable
...ll for all cases that are of interest to me (IEnumerable, derived classes, etc). Thought I should share here in case anyone needs it also:
Type GetItemType(object someCollection)
{
var type = someCollection.GetType();
var ienum = type.GetInterface(typeof(IEnumerable<>).Name);
...
live output from subprocess command
...output about what iteration its at, what time, what the next time-step is, etc.
16 Answers
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process.env.NODE_ENV is undefined
...
For people using *nix (Linux, OS X, etc.), there's no reason to do it via a second export command, you can chain it as part of the invoking command:
NODE_ENV=development node server.js
Easier, no? :)
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Java: convert List to a String
...ll is 25, Joe is 30, Betty is 35
which is extremely useful for debugging etc.
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Getting multiple keys of specified value of a generic Dictionary?
...ithout very careful thought - but it could certainly implement IEnumerable etc. In fact, it could implement IDictionary<TFirst, TSecond> and IDictionary<TSecond, TFirst>.
– Jon Skeet
Nov 5 '08 at 19:47
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How can I use getSystemService in a non-activity class (LocationManager)?
...savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
fyl lfyl = new fyl(this); //Here the context is passing
Location location = lfyl.getLocation();
String latLongString = lfyl.updateWithNewLocation(location);
Te...
Concept of void pointer in C programming
...guess" the type of object a void* pointer points at. Something similar to getClass() simply doesn't exist, since this information is nowhere to be found. For that reason, the kind of "generic" you are looking for always comes with explicit metainformation, like the int b in your example or the forma...