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Why can't you modify the data returned by a Mongoose Query (ex: findById)
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For cases like this where you want a plain JS object instead of a full model instance, you can call lean() on the query chain like so:
Survey.findById(req.params.id).lean().exec(function(err, data){
var len = data.survey...
Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?
...e servlet is finished running as part of the servlet request life-cycle.
For instance, if you closed the stream it would not be available if you implemented a Filter.
Having said all that, if you do close it nothing bad will happen as long as you don't try to use it again.
EDIT: another filter l...
Python timedelta in years
....2425 (instead of 365.25), which takes the 400 year exception into account for the Gregorian calendar.
– brianary
Dec 24 '09 at 21:09
3
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Comparing two dictionaries and checking how many (key, value) pairs are equal
I have two dictionaries, but for simplification, I will take these two:
26 Answers
26
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Caching a jquery ajax response in javascript/browser
...ll;
},
get: function (url) {
console.log('Getting in cache for url' + url);
return localCache.data[url];
},
set: function (url, cachedData, callback) {
localCache.remove(url);
localCache.data[url] = cachedData;
if ($.isFunction(callback)) callb...
ZeroMQ的学习和研究（PHP代码实例） - C/C++ - 清泛网 - 专注C/C++及内核技术
...::SOCKET_REP);
$responder->bind ("tcp://*:5555");
while(true) {
// Wait for next request from client
$request = $responder->recv ();
printf ("Received request: [%s]\n", $request);
// Do some 'work'
sleep (1);
// Send reply back to client
$responder->send ("World");
}
Client 程序...
How does lucene index documents?
... about Lucene; also I read the document in this link
( http://lucene.sourceforge.net/talks/pisa ).
4 Answers
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Hide the cursor of an UITextField
I am using a UITextField with a UIPickerView for its inputView , so that when the user taps the text field, a picker is summoned for them to select an option from.
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How to filter array in subdocument with MongoDB [duplicate]
... aggregate is the right approach, but you need to $unwind the list array before applying the $match so that you can filter individual elements and then use $group to put it back together:
db.test.aggregate([
{ $match: {_id: ObjectId("512e28984815cbfcb21646a7")}},
{ $unwind: '$list'},
...
ThreadStatic v.s. ThreadLocal: is generic better than attribute?
... important, is that [ThreadStatic] doesn't automatically initialize things for every thread. For example, say you have this:
[ThreadStatic]
private static int Foo = 42;
The first thread that uses this will see Foo initialized to 42. But subsequent threads will not. The initializer works for the f...