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Google Authenticator implementation in Python
...o functions:
get_hotp_token() generates one-time token (that should invalidate after single use),
get_totp_token() generates token based on time (changed in 30-second intervals),
Parameters
When it comes to parameters:
secret is a secret value known to server (the above script) and client (Go...
Proper way to implement IXmlSerializable?
Once a programmer decides to implement IXmlSerializable , what are the rules and best practices for implementing it? I've heard that GetSchema() should return null and ReadXml should move to the next element before returning. Is this true? And what about WriteXml - should it write a root el...
How to determine when Fragment becomes visible in ViewPager
...n Fragment becomes visible in ViewPager
You can do the following by overriding setUserVisibleHint in your Fragment:
public class MyFragment extends Fragment {
@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if ...
How to call any method asynchronously in c#
...ay to fire-and-forget for async jobs:
using System.Threading.Tasks;
...
void Foo(){}
...
new Task(Foo).Start();
If you have methods to call that take parameters, you can use a lambda to simplify the call without having to create delegates:
void Foo2(int x, string y)
{
return;
}
...
new Task(...
Understanding prototypal inheritance in JavaScript
...u do new Car() the function drive() will be created again). Or different said the first uses the prototype to store the function and the second the constructor. The lookup for functions is constructor and then prototype. So for your lookup of Drive() it finds it regardless if it is in the constructo...
How to securely store access token and secret in Android?
...tion key.
What's the best method to securely store these tokens in Android?
4 Answers
...
Change date of git tag (or GitHub Release based on it)
... environment variable GIT_COMMITTER_DATE before this is
# run, we override the default tag date. Note that if you
# specify the variable on a different line, it will apply to
# the current environment. This isn't desired as probably
# don't want your future tags to also have that pas...
What guarantees are there on the run-time complexity (Big-O) of LINQ methods?
...t's restrict the discussion to the plain IEnumerable LINQ-to-Objects provider. Further, let's assume that any Func passed in as a selector / mutator / etc. is a cheap O(1) operation.
...
Python constructors and __init__
...tance of Test to have an attribute x equal to 10, you can put that code inside __init__:
class Test(object):
def __init__(self):
self.x = 10
t = Test()
print t.x
Every instance method (a method called on a specific instance of a class) receives the instance as its first argument. Tha...
Scrolling a flexbox with overflowing content
... Note that Firefox currently only supports "min-content" for width values, not height values -- so this won't work in Firefox, if that matters to you. (See e.g. bugzilla.mozilla.org/show_bug.cgi?id=852367 )
– dholbert
Feb 5 '14 at 23:53
...