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Why do access tokens expire?
I am just getting started working with Google API and OAuth2. When the client authorizes my app I am given a "refresh token" and a short lived "access token". Now every time the access token expires, I can POST my refresh token to Google and they will give me a new access token.
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Why do I have to access template base class members through the this pointer?
If the classes below were not templates I could simply have x in the derived class. However, with the code below, I have to use this->x . Why?
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Reduce, fold or scan (Left/Right)?
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In general, all 6 fold functions apply a binary operator to each element of a collection. The result of each step is passed on to the next step (as input to one of the binary operator's two arguments). This way we can cumulate a result.
reduceLeft and reduceRight cumulate a single result.
f...
List of Big-O for PHP functions
...ilt-in PHP functions are as fast as expected. Consider these two possible implementations of a function that finds if a number is prime using a cached array of primes.
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MySQL table is marked as crashed and last (automatic?) repair failed
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If your MySQL process is running, stop it. On Debian:
sudo service mysql stop
Go to your data folder. On Debian:
cd /var/lib/mysql/$DATABASE_NAME
Try running:
myisamchk -r $TABLE_NAME
If that doesn't work, you can try:
myis...
What is better, adjacency lists or adjacency matrices for graph problems in C++?
What is better, adjacency lists or adjacency matrix, for graph problems in C++?
What are the advantages and disadvantages of each?
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Program does not contain a static 'Main' method suitable for an entry point
Suddenly my whole project stopped compiling at all, showing the following message:
9 Answers
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Placeholder in UITextView
My application uses an UITextView . Now I want the UITextView to have a placeholder similar to the one you can set for an UITextField .
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How to integrate nodeJS + Socket.IO and PHP?
I have recently been looking around, to find a good way to communicate between nodeJS and PHP. Here is the idea : nodeJS is still quite new, and it can be kind of tricky to develop a full application only with it. Moreover, you may need it only for one module of your project, like realtime notificat...
Get an object properties list in Objective-C
How can I get a list (in the form of an NSArray or NSDictionary ) of a given object properties in Objective-C?
13 Answ...