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Twig ternary operator, Shorthand if-then-else
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{{ (ability.id in company_abilities) ? 'selected' : '' }}
The ternary operator is documented under 'other operators'
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Initialize class fields in constructor or at declaration?
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I expect that kokos means that you should not initialize members to their default values (0, false, null etc.), since the compiler will do that for you (1.). But if you want to initialize a field to anything other than its default value, you sho...
Python Requests throwing SSLError
...em file of the certificate (which you should obtain by some sort of secure means).
So, as of version 2.0, the verify parameter accepts the following values, with their respective semantics:
True: causes the certificate to validated against the library's own trusted certificate authorities (Note: ...
Why doesn't String switch statement support a null case?
...invoking the method Enum.ordinal(). The [...] ordinals start at zero.
That means, mapping null to 0 wouldn't be a good idea. A switch on the first enum value would be indistinguishible from null. Maybe it would've been a good idea to start counting the ordinals for enums at 1. However it hasn't been...
How do I generate random integers within a specific range in Java?
...numbers. However, if the Random instance is re-created on each call, that means that instead of a proper RNG you're going to get "random" numbers based on whatever seed is chosen each time - often this is based on the system clock. This can give decidedly non-random results. Instead, you should c...
How to round up to the nearest 10 (or 100 or X)?
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The round function in R assigns special meaning to the digits parameter if it is negative.
round(x, digits = 0)
Rounding to a negative number of digits means rounding to a power of ten, so for example round(x, digits = -2) rounds to the nearest hundred.
This mean...
Changing variable names in Vim
...current scope {}.
Move your cursor to the variable usage. Press gd. Which means - move cursor to the definition.
Now Press [{ - this will bring you to the scope begin.
Press V - will turn on Visual Line selection.
Press % - will jump to the opposite } thus will select the whole scope.
Press :s/ - s...
Are strongly-typed functions as parameters possible in TypeScript?
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(n: number) => any means any function signature?
– nikk wong
Feb 17 '16 at 22:08
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Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
... what hibernate is saying is that you have two objects which have the same identifier (same primary key) but they are not the same object.
I would suggest you break down your code, i.e. comment out bits until the error goes away and then put the code back until it comes back and you should find the...
java.net.SocketException: Connection reset
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Connection reset simply means that a TCP RST was received. This happens when your peer receives data that it can't process, and there can be various reasons for that.
The simplest is when you close the socket, and then write more data on the output...