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Zooming MKMapView to fit annotation pins?
...nt to note that showAnnotations also adds the annotations to the map, even if an annotation for that location already exists.
– Eneko Alonso
Feb 29 '16 at 22:26
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Why can I not push_back a unique_ptr into a vector?
...correct. You cannot use it to manage a pointer to a local variable. The lifetime of a local variable is managed automatically: local variables are destroyed when the block ends (e.g., when the function returns, in this case). You need to dynamically allocate the object:
std::unique_ptr<int&g...
When should I use perror(“…”) and fprintf(stderr, “…”)?
...
@R.., ha, I already have, and as far as I know they are not paying me a thing. And since MS seems to be cutting their support for C completely, at the end I will be the only one :) strerror_s is actually not too bad as an interface.
– Jens Gusted...
How to change height of grouped UITableView header?
...auses UITableView to use a default value. This is
undocumented behavior. If you return a very small number, you
effectively get a zero-height header.
Swift 3:
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
if section == 0 {
...
Include jQuery in the JavaScript Console
...xample, on a website I would like to get the number of rows in a table. I know this is really easy with jQuery.
20 Answers
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Function for Factorial in Python
...l (available in Python 2.6 and above):
import math
math.factorial(1000)
If you want/have to write it yourself, you can use an iterative approach:
def factorial(n):
fact = 1
for num in range(2, n + 1):
fact *= num
return fact
or a recursive approach:
def factorial(n):
i...
How to display Base64 images in HTML?
...SuGq1uTrfUgMEp9EJ+CQvr+BJ/AAKvAcCiAR+bf9CjAAluzmdX4AEIIAAAAASUVORK5CYII=
Now it's simple to use.
You have to just put it in the src of the image and define there as it is in base64 encoded form.
Example:
<img src="data:image/jpeg;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAZCAYAAADE6YVjAAAAGXRFWHR...
Jackson Vs. Gson [closed]
...
Gson 1.6 now includes a low-level streaming API and a new parser which is actually faster than Jackson.
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iPhone - Get Position of UIView within entire UIWindow
... the bounds of the window. The screen's and device coordinate systems are different and should not be mixed up with window coordinates.
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Passing an integer by reference in Python
...ide your function you have an object -- You're free to mutate that object (if possible). However, integers are immutable. One workaround is to pass the integer in a container which can be mutated:
def change(x):
x[0] = 3
x = [1]
change(x)
print x
This is ugly/clumsy at best, but you're not g...