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What does value & 0xff do in Java?
...
It sets result to the (unsigned) value resulting from putting the 8 bits of value in the lowest 8 bits of result.
The reason something like this is necessary is that byte is a signed type in Java. If you just wrote:
int result = value;...
How to create a file in Linux from terminal window? [closed]
...with newlines\n" > file . Good luck to all.
– shellter
Feb 21 '12 at 16:50
1
...
JavaScript, Node.js: is Array.forEach asynchronous?
...row new TypeError();
var thisp = arguments[1];
for (var i = 0; i < len; i++)
{
if (i in t)
fun.call(thisp, t[i], i, t);
}
};
}
If you have to execute a lot of code for each element, you should consider to use a different approach:
function processArray(items,...
Android: How can I validate EditText input?
...
Although there is poor support on TextWatcher, it works... kinda!
– Tivie
Nov 22 '10 at 17:35
...
Javascript Drag and drop for touch devices [closed]
...l);
touch.target.dispatchEvent(simulatedEvent);
event.preventDefault();
}
function init() {
document.addEventListener("touchstart", touchHandler, true);
document.addEventListener("touchmove", touchHandler, true);
document.addEventListener("touchend", touchHandler, true);
do...
iPhone: How to get current milliseconds?
... Note, you'll need to include the Quartz Framework and #import <Quartz/CABase.h> to make this call.
– BadPirate
Feb 21 '12 at 21:08
8
...
How to prevent browser to invoke basic auth popup and handle 401 error using Jquery?
...facing this issue recently, too. Since you can't change the browser's default behavior of showing the popup in case of a 401 (basic or digest authentication), there are two ways to fix this:
Change the server response to not return a 401. Return a 200 code instead and handle this in your jQuery cl...
How do I format a string using a dictionary in python-3.x?
...
This is useful if you're using a defaultdict and don't have all the keys
– Whymarrh
Jan 9 '17 at 17:12
...
Decorators with parameters?
...unny_stuff()
something_with_argument(argument)
result = function(*args, **kwargs)
more_funny_stuff()
return result
return wrapper
return decorator
Here you can read more on the subject - it's also possible to implement this using callable...
Token Authentication for RESTful API: should the token be periodically changed?
...entication token. This of course is up to the server to enforce.
The default TokenAuthentication class does not support this, however you can extend it to achieve this functionality.
For example:
from rest_framework.authentication import TokenAuthentication, get_authorization_header
from rest_fr...