Up until now I have only used database.yml with each parameter called out explicitly, in the file below it uses some characters I do not understand. What does each line and symbol(&,*, ...

...Then this: f(i=-1, i=-1) might become: clear i clear i decr i decr i Now i is -2. It is probably a bogus example, but it is possible. share | improve this answer | fol...

... Wait for a minute to pass, then hit refresh. The session id will change. Now, if my guess is correct, you want to make your users log out as soon as the session times out. For doing this, you can rig up a login page which will verify the user credentials, and create a session variable like this - ...

... My knowledge of theoretical C# is limited, but I assume the classloader guarantees the code is run single threaded as it does in Java. I'm pretty sure there's a similar example in Java Puzzlers. – Voo ...

...being assigned or passed as an argument. That is what we call a callback. Now the question is, when is that callback called? It depends on the case. Let's try to trace some common behavior again: img.onload may be called sometime in the future, when (and if) the image has successfully loaded. se...

...ition and subtraction remains difficult. So along comes two's complement. Now you can store positive and negative integers and perform arithmetic with relative ease. There are a number of methods to convert a number into two's complement. Here's one. Convert Decimal to Two's Complement Convert t...

... Also note that @ChilNut's response below now describes the easiest way of doing this using ES6 – rambossa Jan 28 '16 at 14:34 ...

...u have to support older stuff for a while. And I guess the Xcode dev team knows this too, which is why you can add armv6 support back in quite simply. share | improve this answer | ...

...redis cache on Azure. My first service on azure - been waiting for 25 mins now and can't believe that this is normal / acceptable. – Gravy Jan 22 '18 at 17:09 1 ...

...} dostuff(i); break; } case 2: dostuff(123); // Now you cannot use i accidentally } Edit To further elaborate, switch statements are just a particularly fancy kind of a goto. Here's an analoguous piece of code exhibiting the same issue but using a goto instead of a switc...