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How to export collection to CSV in MongoDB?
...oDB issue tracker https://jira.mongodb.org/browse/SERVER-4224 you MUST provide the fields when exporting to a csv. The docs are not clear on it. That is the reason for the error.
Try this:
mongoexport --host localhost --db dbname --collection name --csv --out text.csv --fields firstName,middleName...
Adding gif image in an ImageView in android
...extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
InputStream stream = null;
try {
stream = getAssets().open("piggy.gif");
} catch (IOException e) {
e.p...
Rebasing and what does one mean by rebasing pushed commits
It is often said that, you should not rebase commits that you have already pushed. What could be meaning of that?
4 Answer...
How to remove an HTML element using Javascript?
...
JavaScript:
function removeDummy() {
var elem = document.getElementById('dummy');
elem.parentNode.removeChild(elem);
return false;
}
But you don't need (or want) a form for that at all, not if its sole purpose is to remove the dummy div. Instead:
HTML:
<input type="button" value...
Can I browse other people's (Apple) bug reports? [closed]
...
As other people have said here, you can't see the bugs that other people have reported to Apple. However, I recently read that Apple uses multiple bug reports for the same issue as an indicator of the severity or priority of a bug or request (see t...
Handle ModelState Validation in ASP.NET Web API
I was wondering how I can achieve model validation with ASP.NET Web API. I have my model like so:
10 Answers
...
Convert JavaScript string in dot notation into an object reference
...o ahead and do what OP is asking for. However, if that's not the case, consider if any of these apply:
case 1: As the primary method of working with your data (e.g. as your app's default form of passing objects around and dereferencing them). Like asking "how can I look up a function or variabl...
Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
...how much time does the clock wrap around? Or is there some mechanism to avoid this?
Is the clock monotonic, or will it change with changes in the system time (via NTP, time zone, daylight savings time, by the user, etc.)?
How do the above vary between implementations?
Is the specific function obsole...
How to use the 'main' parameter in package.json?
...
From the npm documentation:
The main field is a module ID that is the primary entry point to your
program. That is, if your package is named foo, and a user installs
it, and then does require("foo"), then your main module's exports
object will be returned.
This should ...
Why is it said that “HTTP is a stateless protocol”?
...t. That is solely a performance thing, intended to minimize the time/bandwidth that'd otherwise be spent reestablishing a connection for each request.
As far as HTTP is concerned, they are all still separate requests and must contain enough information on their own to fulfill the request. That is...