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Using an integer as a key in an associative array in JavaScript
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yes, but when iterating they're not in any particular order (i.e. order is not guaranteed), which would be the point of numbering them, so it's a lot worse than just confusing.
– Julix
Jan 3 '17 at 5:43
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Select where count of one field is greater than one
... COUNT(Field1)
FROM Table1
GROUP BY Field1
HAVING COUNT(Field1) > 1
ORDER BY Field1 desc
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Difference between onStart() and onResume()
...E: I've deliberately left out the calls to things like super.onCreate(...) etc. This is pseudo-code so give me some artistic licence here. ;)
The methods for DriveToWorkActivity follow...
protected void onCreate(...) {
openGarageDoor();
unlockCarAndGetIn();
closeCarDoorAndPutOnSeatBelt...
JavaScript: How to find out if the user browser is Chrome?
...t this, here's the code I used which excluded Edge, Maxthon, iOS safari ...etc var is_chrome = ((navigator.userAgent.toLowerCase().indexOf('chrome') > -1) &&(navigator.vendor.toLowerCase().indexOf("google") > -1));
– Alex C.
Mar 1 '16 at 16:09
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event.preventDefault() function not working in IE
... can use
event.returnValue = false;
to achieve the same result.
And in order not to get an error, you can test for the existence of preventDefault:
if(event.preventDefault) event.preventDefault();
You can combine the two with:
event.preventDefault ? event.preventDefault() : (event.returnValu...
Get class name of object as string in Swift
...ct can be an instance variable like array, a dictionary, an Int, a NSDate, etc.
Because NSObject is the root class of most Objective-C class hierarchies, you could try to make an extension for NSObject to get the class name of every subclass of NSObject. Like this:
extension NSObject {
var the...
When is TCP option SO_LINGER (0) required?
...nt of your server application misbehaves (times out, returns invalid data, etc.) an abortive close makes sense to avoid being stuck in CLOSE_WAIT or ending up in the TIME_WAIT state.
If you must restart your server application which currently has thousands of client connections you might consider se...
Difference between classification and clustering in data mining? [closed]
...ere would be a lot of answers because the heights can be 5.0, 5.01, 5.011, etc. But a simple classification like types of light sabers (red,blue.green) would have very limited answers. Infact they can be represented with simple numbers. Red can be 0 , Blue can be 1 and Green can be 2.
If you know ...
Make a Bash alias that takes a parameter?
...h() { mv "$@" ~/.Trash; }
That's it! You can use parameters $1, $2, $3, etc, or just stuff them all with $@
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How to hide Soft Keyboard when activity starts
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* Hides the soft keyboard
*/
public void hideSoftKeyboard() {
if(getCurrentFocus()!=null) {
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), 0);...