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CSS Selector that applies to elements with two classes
...
Chain both class selectors (without a space in between):
.foo.bar {
/* Styles for element(s) with foo AND bar classes */
}
If you still have to deal with ancient browsers like IE6, be aware that it doesn't read chained class selectors correctly: it'll only read the last clas...
Static variables in member functions
...
Since class A is a non-template class and A::foo() is a non-template function. There will be only one copy of static int i inside the program.
Any instance of A object will affect the same i and lifetime of i will remain through out the program. To add an example:
A o...
Apk location in New Android Studio
..., and the recommended one in general is Gradle.
For a new project called "Foo", the structure under the main folder will be
Foo/
settings.gradle
Foo/
build.gradle
build/
Where the internal "Foo" folder is the main module (this structure allows you to create more modules l...
How to extract a git subdirectory and make a submodule out of it?
...roject
# Create a branch which only contains commits for the children of 'foo'
git subtree split --prefix=foo --branch=foo-only
# Remove 'foo' from the project
git rm -rf ./foo
# Create a git repo for 'foo' (assuming we already created it on github)
mkdir foo
pushd foo
git init
git remote add ori...
Initializing C# auto-properties [duplicate]
...w was written before C# 6 came along. In C# 6 you can write:
public class Foo
{
public string Bar { get; set; } = "bar";
}
You can also write read-only automatically-implemented properties, which are only writable in the constructor (but can also be given a default initial value:
public clas...
Passing argument to alias in bash [duplicate]
...eding to be or able to be passed as explicit arguments (e.g. $1).
$ alias foo='/path/to/bar'
$ foo some args
will get expanded to
$ /path/to/bar some args
If you want to use explicit arguments, you'll need to use a function
$ foo () { /path/to/bar "$@" fixed args; }
$ foo abc 123
will be ex...
Using generic std::function objects with member functions in one class
...nd the only) argument.
std::function<void(void)> f = std::bind(&Foo::doSomething, this);
If you want to bind a function with parameters, you need to specify placeholders:
using namespace std::placeholders;
std::function<void(int,int)> f = std::bind(&Foo::doSomethingArgs, this...
Unable to import a module that is definitely installed
...eters: if there was an import of the form "from <package> import <foo>", and if the obstructing package had no "foo", then you'd get an import error for option 3.
– Dan H
Apr 26 '16 at 21:38
...
Get element inside element by class and ID - JavaScript
... a function like getElementById.
var targetDiv = document.getElementById("foo").getElementsByClassName("bar")[0];
getElementById only returns one node, but getElementsByClassName returns a node list. Since there is only one element with that class name (as far as I can tell), you can just get th...
Readonly Properties in Objective-C?
...
In the header .h file:
@property (strong, nonatomic, readonly) NSString* foo;
In the implementation .m file:
// inside one of my init methods
self->_foo = @"someString"; // Notice the underscore prefix of var name.
That’s it, that’s all you need. No muss, no fuss.
Details
As of Xcode ...