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When to use a Content Provider
...come with implementing your own Content Provider, so you shouldn't drop it from consideration just because your app doesn't share its data.
– Alex Lockwood
Jun 27 '12 at 18:34
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Suppress/ print without b' prefix for bytes in Python 3
... the method.
The most obvious workaround is to manually slice off the b'' from the resulting repr():
>>> x = b'\x01\x02\x03\x04'
>>> print(repr(x))
b'\x01\x02\x03\x04'
>>> print(repr(x)[2:-1])
\x01\x02\x03\x04
...
How do you use “
...t useful in conjunction with closures to maintain state. Here's a section from a recent paper of mine:
A closure is a function written by another function. Closures are so called because they enclose the environment of the parent function, and can access all variables and parameters in that functi...
What is the difference between and ?
...e page.
<div>, on the other hand, does not convey any meaning, aside from any found in its class, lang and title attributes.
So no: using a <div> does not define a section in HTML.
From the spec:
<section>
The <section> element represents a generic section of a document or a...
npm: disable postinstall script for package
...le postinstall script while installing package? Or for rewriting any field from package.json?
4 Answers
...
What's the best way of implementing a thread-safe Dictionary?
I was able to implement a thread-safe Dictionary in C# by deriving from IDictionary and defining a private SyncRoot object:
...
Haskell composition (.) vs F#'s pipe forward operator (|>)
... x // or x |> exp
to make it compile. This also steers people away from points-free/compositional style, and towards the pipelining style. Also, F# type inference sometimes demands pipelining, so that a known type appears on the left (see here).
(Personally, I find points-free style unread...
Sorting a Python list by two fields
I have the following list created from a sorted csv
7 Answers
7
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NSUserDefaults removeObjectForKey vs. setObject:nil
...l.
here is how to test if setting key value to nil removed the key entry from NSUserDefaults standardUserDefaults.
NSArray *keys = [[[NSUserDefaults standardUserDefaults] dictionaryRepresentation] allKeys] copy];
for(NSString *key in keys) {
NSLog(@"Key Name: %@", key);
}
[keys release]...
Performance of Java matrix math libraries? [closed]
...d of course write your own native library with those optimisations to call from Java).
So what does all this mean? Well:
in principle, it is worth hunting around for a better-performing library, though unfortunately I can't recomend one
if performance is really critical to you, I would consider j...