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Return array in a function
...on plain C arrays and many other types of collection, for example
int arr[100];
int *foo = fillarr(arr, arr+100);
Which now looks an awful lot like the plain pointer examples given elsewhere in this question.
share
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Why do people hate SQL cursors so much? [closed]
...r loops with joins and a single, flat cursor loop can make programs run in 100th the time. [They thought I was the god of optimization. All I did was replace nested loops with joins. Still used cursors.]
This confusion often leads to an indictment of cursors. However, it isn't the cursor, it's ...
Best way to compare two complex objects
... It depends on how many times he's going to run the equals method: 1, 10, 100, 100, a million? That will make a big difference. If he can use a generic solution without implementing anything he will spare some precious time. If it's too slow, then it's time to implement IEquatable (and perhaps even...
Nginx no-www to www and www to no-www
...lieve me, the best nginx server) no need to upgrade or update. Works fine. 100,000 unique hits a day with 4200 transactions average a day. Nginx is RAPID. like using a site with no traffic.
– TheBlackBenzKid
Nov 30 '11 at 18:11
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What can you use Python generator functions for?
...unction is clearer. And if you use the function like this:
for x in fibon(1000000):
print x,
in this example, if using the generator version, the whole 1000000 item list won't be created at all, just one value at a time. That would not be the case when using the list version, where a list wou...
Why does z-index not work?
...context.
So with following html
div { border: 2px solid #000; width: 100px; height: 30px; margin: 10px; position: relative; background-color: #FFF; }
#el3 { background-color: #F0F; width: 100px; height: 60px; top: -50px; }
<div id="el1" style="z-index: 5"></div>
<div id="el2"...
textarea's rows, and cols attribute in CSS
...ou can. I always go with height and width.
textarea{
width:400px;
height:100px;
}
the nice thing about doing it the CSS way is that you can completely style it up. Now you can add things like:
textarea{
width:400px;
height:100px;
border:1px solid #000000;
background-color:#CCCCCC;
}
...
JOIN queries vs multiple queries
...
100
For inner joins, a single query makes sense, since you only get matching rows.
For left joins,...
When should one use RxJava Observable and when simple Callback on Android?
...For example, the caller wants to get a photo that is cropped to dimensions 100x100. The api may return any size photo, so you can map the getUserPhoto observable to another ResizedPhotoObservable - the caller only gets notified when the resizing is done. If you don't need to use it, don't force it.
...
What is the difference between Pan and Swipe in iOS?
...raggable view
let circle = UIView(frame: CGRect(x: 0.0, y: 0.0, width: 100.0, height: 100.0))
circle.center = self.view.center
circle.layer.cornerRadius = 50.0
circle.backgroundColor = UIColor.green()
// add pan gesture recognizer to
circle.addGestureRecognizer(UIPanGestureR...