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Is there a CSS selector for the first direct child only?
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What you posted literally means "Find any divs that are inside of section divs and are the first child of their parent." The sub contains one tag that matches that description.
It is unclear to me whether you want both children of the main div or not. If so, use this:
div.section &...
C++ Double Address Operator? (&&)
I'm reading STL source code and I have no idea what && address operator is supposed to do. Here is a code example from stl_vector.h :
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Can inner classes access private variables?
... public:
Inner(Outer& x): parent(x) {}
void func()
{
std::string a = "myconst1";
std::cout << parent.var << std::endl;
if (a == MYCONST)
{ std::cout << "string same" <...
What does (angle brackets) mean in Java?
...h can hold any type of data.
Example:
class A<T>{
T obj;
void add(T obj){
this.obj=obj;
}
T get(){
return obj;
}
}
public class generics {
static<E> void print(E[] elements){
for(E element:elements){
System.out.println(element...
Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
I've written two ways to async load pictures inside my UITableView cell. In both cases the image will load fine but when I'll scroll the table the images will change a few times until the scroll will end and the image will go back to the right image. I have no idea why this is happening.
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AngularJS check if form is valid in controller
I need to check if a form is valid in a controller.
4 Answers
4
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What is included in JCenter repository in Gradle?
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There's no need to search for the link (as I just did on the wayback machine) because Alireza has copied the text from the linked page into his answer.
– JL_SO
Nov 14 '19 at 8:31
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C++ map access discards qualifiers (const)
... I would add that now in C11 you can use: std::map::at(key) and avoid the iterator.
– Juan Besa
Dec 19 '13 at 19:17
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How much size “Null” value takes in SQL Server
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If the field is fixed width storing NULL takes the same space as any other value - the width of the field.
If the field is variable width the NULL value takes up no space.
In addition to the space required to store a null value there is also an o...
Postgres dump of only parts of tables for a dev snapshot
...tps://www.postgresql.org/docs/current/static/sql-copy.html
You should consider maintaining a set of development data rather than just pulling a subset of your production. In the case that you're writing unit tests, you could use the same data that is required for the tests, trying to hit all of th...