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Do NSUserDefaults persist through an Update to an app in the Appstore?
...a, NSUserDefaults is the best way to save data such as preferences, dates, strings etc. If you are looking to save images and files, the file system is a better bet.
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What's the difference between “declare class” and “interface” in TypeScript
...n we have the following interface:
interface test {
foo: number,
bar: string,
}
The objects which we define which have this interface type need to match the interface exactly:
// perfect match has all the properties with the right types, TS compiler will not complain.
const obj1: test = { ...
UTF-8: General? Bin? Unicode?
...eas utf8 might give you hundreds of encoding-related bugs like:
Incorrect string value: ‘\xF0\x9F\x98\x81…’ for column ‘data’ at row 1
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Handling InterruptedException in Java
...ds, it makes perfect sense for the method to throw InterruptedExceptions.
String tryToReadFile(File f) throws InterruptedException {
for (int i = 0; i < 10; i++) {
if (f.exists())
return readFile(f);
Thread.sleep(1000);
}
return null;
}
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Final arguments in interface methods - what's the point?
...reason, but slightly different contexts.)
Objects:
public static void main(String[] args) {
StringBuilder cookingPot = new StringBuilder("Water ");
addVegetables(cookingPot);
addChicken(cookingPot);
System.out.println(cookingPot.toString());
// ^--- OUTPUT IS: Water Carrot Brocco...
Set environment variables on Mac OS X Lion
...
Two things to try: First, is your pasted string has an incorrect semicolon after ".dtd>" Maybe it is a copy and paste error, but I had to remove it to get Xcode to read the file. Second, you may need to log out and back in for the effects to take place.
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PHP CURL DELETE request
...ed object:
/**
* @desc Do a DELETE request with cURL
*
* @param string $path path that goes after the URL fx. "/user/login"
* @param array $json If you need to send some json with your request.
* For me delete requests are always blank
* @return Obj $...
Add a prefix to all Flask routes
...nes a new route function with a prefix.
The mask argument is a `format string` formatted with, in that order:
prefix, route
'''
def newroute(route, *args, **kwargs):
'''New function to prefix the route'''
return route_function(mask.format(prefix, route), *args, **kwargs)
retu...
What is a None value?
... you wanted to. When you write
F = "fork"
you put the sticker "F" on a string object "fork". If you then write
F = None
you move the sticker to the None object.
What Briggs is asking you to imagine is that you didn't write the sticker "F", there was already an F sticker on the None, and all...
Does Java 8 provide a good way to repeat a value or function?
...
To get and equivalent to Haskell's
take 8 (repeat 1)
You could write
StringBuilder s = new StringBuilder();
repeat.accept(8, () -> s.append("1"));
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