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Accessing a class's constants
...the constant outside of the class, prefix it with the class name, followed by two colons
Foo::MY_CONSTANT #=> hello
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Copy constructor for a class with unique_ptr
...to ensure the derived class is copied correctly.
This can be accomplished by adding the following code:
struct Base
{
//some stuff
auto clone() const { return std::unique_ptr<Base>(clone_impl()); }
protected:
virtual Base* clone_impl() const = 0;
};
struct Derived : public Base...
Good way of getting the user's location in Android
...private Location getBestLocation() {
Location gpslocation = getLocationByProvider(LocationManager.GPS_PROVIDER);
Location networkLocation =
getLocationByProvider(LocationManager.NETWORK_PROVIDER);
// if we have only one location available, the choice is easy
if (gpslocati...
How to do relative imports in Python?
...the question.
The problem is that you're running the module as '__main__' by passing the mod1.py as an argument to the interpreter.
From PEP 328:
Relative imports use a module's __name__ attribute to determine that module's position in the package hierarchy. If the module's name does not conta...
Best way to detect that HTML5 is not supported
...f checking for the existence of getContext, also used in a similar fashion by the Modernizr library:
var canvasSupported = !!document.createElement("canvas").getContext;
Checking the existence of the HTMLCanvasElement interface, as defined by the WebIDL and HTML specifications. This approach w...
writing some characters like '
... follow Moss guide: How can I write character & in android strings.xml by used Unicode definition:
Example:
<string name="item_unknown">\u003c Item Unknown \u003e</string>
which present in string :
< Item Unknown >
...
JMS and AMQP - RabbitMQ
...ng complex :D I hope you are not a teacher :) ) Let's see all of these one by one.
As you know:
The Java Message Service (JMS) API is a Java Message Oriented Middleware (MOM) API for sending messages between two or more clients. JMS is a part of the Java Platform, Enterprise Edition, and is define...
How to escape % in String.Format?
...
"I can't believe that this isn't a simple solved problem by now" << You answered 6 years after a simple solution was accepted.
– AjahnCharles
Nov 21 '18 at 14:22
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Where can I set environment variables that crontab will use?
...ns the job from the terminal, however, obviously these don't get picked up by crontab when it runs.
14 Answers
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Difference between window.location.assign() and window.location.replace()
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location.assign():
To assign route path by passing path into it. Assign will give you a history even after path was assigned.
Usage Method: Value should be passed into it.
Eg: location.assign("http://google.com")
location.replace():
It helps to replace path...