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Check if SQL Connection is Open or Closed
... There is one giant caveats with that: 1) with Local Storage now becoming a thing, sooner or later (already?) web apps that use local storage are going to be using a database in that storage. If not now, they will shortly. The other thing here is, my code probably isn't properly genera...
Private properties in JavaScript ES6 classes
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By now, this solution is also officially supported in Google Chrome and Node.js v12. Private getters and setters are in development.
– Eyk Rehbein
May 10 '19 at 15:56
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Why is there “data” and “newtype” in Haskell? [duplicate]
... to implement multiple instances of a class for that same underlying type. Now compiler won't complain if you attempt to define instances of say Ord Feet and Ord Cm. Whereas you can't have two definitions as Ord Double.
– Niket Kumar
May 29 '14 at 12:08
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Execution of Python code with -m option or not
..._ is set to None.
But run a package or module inside a package with -m and now there is at least the possibility of a package, so the __package__ variable is set to a string value; in the above demonstration it is set to 'foo.bar', for plain modules not inside a package it is set to an empty string....
What are type lambdas in Scala and what are their benefits?
... point[A](a: A): M[A]
def bind[A, B](m: M[A])(f: A => M[B]): M[B]
}
Now, Either is a type constructor of two arguments, but to implement Monad, you need to give it a type constructor of one argument. The solution to this is to use a type lambda:
class EitherMonad[A] extends Monad[({type λ[...
sizeof single struct member in C
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Wow, I didn't know sizeof((type *)0)->member) works. Am not on my dev machine now, but does this work for all the compilers? Thanks for that Joey.
– Gangadhar
Aug 24 '10 at 5:03
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How to optimize for-comprehensions and loops in Scala?
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Now, in 2014, I tested this again and for me performance is the following: java -> 0.3s; scala -> 3.6s; scala optimized -> 3.5s; scala functional -> 4s; Looks much better than 3 years ago, but... Still th...
Pandas - How to flatten a hierarchical index in columns
...test version of pandas. It works with 0.18 but not with 0.20 (latest as of now)
– TH22
Oct 10 '17 at 20:59
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Get event listeners attached to node using addEventListener
...ification or reasoning for why it must work this way? Clearly the browser knows what all of the listeners are.
– Darth Egregious
Apr 5 '12 at 19:23
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Objective-C and Swift URL encoding
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Ah yes, now I remember the funky stringByAddingPercentEscapesUsingEncoding behaviour. It only encodes '&' and '=' or something ridiculous like that.
– Mike Weller
Jun 14 '12 at 14:45
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