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What's the optimum way of storing an NSDate in NSUserDefaults?
... is one of the "main types" supported by the PLIST format (dates, numbers, strings, data, dictionaries, and arrays), so you can just store it directly.
See the documentation for proof.
Just store and retrieve the date directly and watch it Do The Right Thing (including time zones, precision, etc)....
Difference between @Before, @BeforeClass, @BeforeEach and @BeforeAll
...unctions in the class.
SampleClass
public class SampleClass {
public String initializeData(){
return "Initialize";
}
public String processDate(){
return "Process";
}
}
SampleTest
public class SampleTest {
private SampleClass sampleClass;
@BeforeClass
...
AJAX Mailchimp signup form integration
...sult != "success") {
// Something went wrong, parse data.msg string and display message
} else {
// It worked, so hide form and display thank-you message.
}
}
});
return false;
});
...
GCC compile error with >2 GB of code
...u can do this:
change the generator program to output offsets instead of strings (i.e. instead of the string "s.ds0" it will produce offsetof(ProcessVars, ds0)
create an array of such offsets
write an evaluator which accepts the array above and the base addresses of the structure pointers and pro...
When should I use require() and when to use define()?
...n that handles definitions of modules. Differs from
* require() in that a string for the module should be the first argument,
* and the function to execute after dependencies are loaded should
* return a value to define the module corresponding to the first argument's
* name.
*/
The define() ...
When should you use constexpr capability in C++11?
... pi = 3.1415f;
// Haven't you always wanted to do this?
// constexpr std::string awesome = "oh yeah!!!";
// UPDATE: sadly std::string lacks a constexpr ctor
struct A
{
static const int four = 4;
static const int five = 5;
constexpr int six = 6;
};
int main()
{
&A::four; // linker ...
How to wait for several Futures?
...Future { println("f1!");throw new RuntimeException; 1 }
def func2 : Future[String] = Future { Thread.sleep(2000);println("f2!");"f2" }
def func3 : Future[Double] = Future { Thread.sleep(2000);println("f3!");42.0 }
val f : Future[(Int,String,Double)] = {
for {
f1 <- func1.concurrently
f...
Set operations (union, intersection) on Swift array?
...let array1 = ["a", "b", "c"]
let array2 = ["a", "b", "d"]
let set1:Set<String> = Set(array1)
let set2:Set<String> = Set(array2)
Swift 3.0+ can do operations on sets as:
firstSet.union(secondSet)// Union of two sets
firstSet.intersection(secondSet)// Intersection of two sets
firstSet....
iOS UIImagePickerController result image orientation after upload
...ker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [String : Any]){
let chosenImage = info[UIImagePickerControllerOriginalImage] as! UIImage
profileImg.contentMode = .scaleAspectFill
let fixOrientationImage=chosenImage.fixOrientation()
profileIm...
seek() function?
...
For strings, forget about using WHENCE: use f.seek(0) to position at beginning of file and f.seek(len(f)+1) to position at the end of file. Use open(file, "r+") to read/write anywhere in a file. If you use "a+" you'll only be ab...