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How to sign an android apk file
...stuck with after you work through it, I'd suggest:
https://developer.android.com/studio/publish/app-signing.html
Okay, a small overview without reference or eclipse around, so leave some space for errors, but it works like this
Open your project in eclipse
Press right-mouse - > tools (android...
End of support for python 2.7?
...@StianOK It's got its fair share: cvedetails.com/vulnerability-list/vendor_id-10210/…
– Basic
Nov 27 '15 at 17:29
14
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How do I delete rows in a data frame?
...
The key idea is you form a set of the rows you want to remove, and keep the complement of that set.
In R, the complement of a set is given by the '-' operator.
So, assuming the data.frame is called myData:
myData[-c(2, 4, 6), ] ...
How to output in CLI during execution of PHP Unit tests?
...est to test output using the built-in methods like:
$this->expectOutputString('foo');
However, sometimes it's helpful to be naughty and see one-off/temporary debugging output from within your test cases. There is no need for the var_dump hack/workaround, though. This can easily be accomplished...
How to keep onItemSelected from firing off on a newly instantiated Spinner?
... fire if you set the adapter before setting up the listener.
That being said, a simple boolean flag would allow you to detect the rogue first selection event and ignore it.
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Simplest way to wait some asynchronous tasks complete, in Javascript?
...mongoose = require('mongoose');
mongoose.connect('your MongoDB connection string');
var conn = mongoose.connection;
var promises = ['aaa', 'bbb', 'ccc'].map(function(name) {
return new Promise(function(resolve, reject) {
var collection = conn.collection(name);
collection.drop(function(er...
How to tell if browser/tab is active [duplicate]
...
You would use the focus and blur events of the window:
var interval_id;
$(window).focus(function() {
if (!interval_id)
interval_id = setInterval(hard_work, 1000);
});
$(window).blur(function() {
clearInterval(interval_id);
interval_id = 0;
});
To Answer the Commented ...
How to increment a datetime by one day?
...ry date, not today. Your example code assigned a variable named today as a string, then never used it. Better: date = datetime.today() 2. Your last line hardcoded today() and assumed the first arg of timedelta is days (which happens to be correct, but why not name it for clarity?) Better: laterDate ...
How to spyOn a value property (rather than a method) with Jasmine
... link = getABC('creosote');
link += "&category=" + String(cat);
link += "&event_type=" + String(type);
link += "&event_value=" + String(val);
i1.src = link;
}
The spyOn() below causes the "n...
Get records with max value for each group of grouped SQL results
...ou want is first, then group by the columns you want the value for.
You avoid complicated subqueries that try to find the max() etc, and also the problems of returning multiple rows when there are more than one with the same maximum value (as the other answers would do)
Note: This is a mysql-only so...