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How do you detect Credit card type based on number?
...blicly available, however, there are unofficial lists, both commercial and free, including on Wikipedia.
Anyway, to detect the type from the number, you can use a regular expression like the ones below: Credit for original expressions
Visa: ^4[0-9]{6,}$ Visa card numbers start with a 4.
MasterCar...
RESTful Authentication via Spring
Problem:
We have a Spring MVC-based RESTful API which contains sensitive information. The API should be secured, however sending the user's credentials (user/pass combo) with each request is not desirable. Per REST guidelines (and internal business requirements), the server must remain stateless. ...
Read the package name of an Android APK
...t command is located on Android\SDK\build-tools\version.
If you need more info about what is appt command (Android Asset Packaging Tool) read this https://stackoverflow.com/a/28234956/812915
The dump sub-command of aapt is used to display the values of individual elements or parts of a package:
...
How to style readonly attribute with CSS?
...o use both...
input[readonly], input[readonly="readonly"] {
/*styling info here*/
}
The readonly attribute is a "boolean attribute", which can be either blank or "readonly" (the only valid values). http://www.whatwg.org/specs/web-apps/current-work/#boolean-attribute
If you are using somethin...
What are the rules for the “…” token in the context of variadic templates?
...gs...) above!
You can use ... to initialize an array also as:
struct data_info
{
boost::any data;
std::size_t type_size;
};
std::vector<data_info> v{{args, sizeof(T)}...}; //pattern = {args, sizeof(T)}
which is expanded to this:
std::vector<data_info> v
{
{arg0, sizeof...
How to get Sinatra to auto-reload the file after each change?
...le:
$ touch tmp/always_restart.txt
See Passenger documentation for more info.
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Get current time as formatted string in Go?
...
Thanks for that info. How does the time package know from passing "20060102150405", just what we are passing, as it is not one of the pre-defined constants in the time package? What is the significance of that date and time in the time packa...
Storyboard - refer to ViewController in AppDelegate
... within the delegate you can access the storyboard instance loaded by your info.plist like this: [[[self window] rootViewController] storyboard] According to the docs this will return the "storyboard from which the view controller originated." (or nil if it didn't come from a storyboard). From th...
In Java, how do I call a base class's method from the overriding method in a derived class?
...message();
z=y;
System.out.println("re:"+z);
}
}
class free{
public static void main(String ar[]){
demo d=new demo(6);
}
}
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Oracle SQL escape character (for a '&')
...
SELECT 'Free &' || ' Clear' FROM DUAL;
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