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Google Authenticator available as a public service?
... QR code documented here.
Google Authenticator generates a 6 digit code by from a SHA1-HMAC of the Unix time and the secret (lots more detail on this in the RFC)
The server also knows the secret / unix time to verify the 6-digit code.
I've had a play implementing the algorithm in javascript here: ...
AngularJS error: 'argument 'FirstCtrl' is not a function, got undefined'
...for the answer, sadly I still get the same error.. So I lost the ng-app="" from the div, but it still doesn't work.
– Pumba
Oct 16 '13 at 16:02
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range over interface{} which stores a slice
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what if I want to get value of interface field from slice of interface without any struct. I have tried this solution but it is limited to get interface reference only from slice not the actual values of fields.
– Amandeep kaur
Sep 2...
What are the main purposes of using std::forward and which problems it solves?
... code implementing std::forward can add to the discussion. This is a slide from Scott Meyers talk An Effective C++11/14 Sampler
Function move in the code is std::move. There is a (working) implementation for it earlier in that talk. I found actual implementation of std::forward in libstdc++, in f...
Why is the String class declared final in Java?
From when I learned that the class java.lang.String is declared as final in Java, I was wondering why that is. I didn't find any answer back then, but this post: How to create a replica of String class in Java? reminded me of my query.
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RootViewController Switch Transition Animation
...duration:0.5
options:UIViewAnimationOptionTransitionFlipFromLeft
animations:^{ self.window.rootViewController = newViewController; }
completion:nil];
share
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What does the question mark in Java generics' type parameter mean?
This is a small snippet of code taken from some of the examples that accompany the Stanford Parser. I've been developing in Java for about 4 years, but have never had a very strong understanding of what this style of code is supposed to indicate.
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Difference between Inheritance and Composition
...ill need do a babysit for example now super class X change the method name from do to doing....then sub class Y will also need to be maintained (needs to be changed as well) this is still tight coupling? And how do we get rid of it?
– stuckedoverflow
Nov 4 '18 ...
What is MOJO in Maven?
...d (mojo). I approximately understand what it means, but I would not refuse from a good explanation. I tried to google, but found only non-maven explanations.
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C++: Rounding up to the nearest multiple of a number
... + multiple - 1) / multiple) * multiple;
}
This works like rounding away from zero for negative numbers
EDIT: Version that works also for negative numbers
int roundUp(int numToRound, int multiple)
{
assert(multiple);
int isPositive = (int)(numToRound >= 0);
return ((numToRound + ...