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System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()
...from milli using a double var = currentTimeStart - nanoTimeStart + nanoTimeNow
– tgkprog
Dec 18 '13 at 13:47
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How to overwrite the previous print to stdout in python?
... to the next line so your prompt won't overwrite your final output.
Update
Now that Python 2 is EOL, a Python 3 answer makes more sense. For Python 3.5 and earlier:
for x in range(10):
print('{}\r'.format(x), end="")
print()
In Python 3.6 and later, f-strings read better:
for x in range(10):
...
shortcut for creating a Map from a List in groovy?
...e 1.8.1, 2011. The question was asked in 2008. But in any case, groupBy is now the way to go indeed.
– mvmn
Apr 1 '14 at 21:48
...
How can I benchmark JavaScript code? [closed]
... Sure, no offense mate. I just thought I’d comment for future reference now that more research has been done on the subject.
– Mathias Bynens
Feb 24 '11 at 10:24
4
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structure vs class in swift language
...e is changed, the instance referenced by both variables is updated. Bob is now Sue, everywhere that Bob was ever referenced.
class SomeClass {
var name: String
init(name: String) {
self.name = name
}
}
var aClass = SomeClass(name: "Bob")
var bClass = aClass // aClass and bClass...
file_put_contents - failed to open stream: Permission denied
...
There is now a troubleshooting checklist for this kind of problems : stackoverflow.com/questions/36577020/…
– Vic Seedoubleyew
Aug 20 '16 at 9:26
...
Else clause on Python while statement
...struct:
while condition:
handle_true()
else:
# condition is false now, handle and go on with the rest of the program
handle_false()
An example might be along the lines of:
while value < threshold:
if not process_acceptable_value(value):
# something went wrong, exit the...
How do I clear stuck/stale Resque workers?
...annoying. But this followed by heroku restart seemed to do the trick. It now shows the correct number of workers.
– Brian Armstrong
Aug 14 '12 at 5:27
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How to implement onBackPressed() in Fragments?
...pBackStack(null, FragmentManager.POP_BACK_STACK_INCLUSIVE);
}
}
Since now, we will work on our code BaseActivity and its fragments
Create private listener on top of your class BaseActivity
protected OnBackPressedListener onBackPressedListener;
create method to set listener in BaseActivity
pu...
Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
... // $arr1 is still array(2, 3)
$arr3 = &$arr1;
$arr3[] = 4; // now $arr1 and $arr3 are the same
?>
For the first part, the best way to be sure is to try ;-)
Consider this example of code :
function my_func($a) {
$a[] = 30;
}
$arr = array(10, 20);
my_func($arr);
var_dump($arr...