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How to delete all Annotations on a MKMapView
...tion = [mapView userLocation];
NSMutableArray *pins = [[NSMutableArray alloc] initWithArray:[mapView annotations]];
if ( userLocation != nil ) {
[pins removeObject:userLocation]; // avoid removing user location off the map
}
[mapView removeAnnotations:pins];
[pins releas...
Why do Java programmers like to name a variable “clazz”? [closed]
...It comes down to the actual compiler and its ability to distinguish what a token means within its context. However, in this particular case, it is the compiler's inability to distinguish what the token class means in a different context. It is a hard and fast rule that class, regardless of its conte...
How do I add 1 day to an NSDate?
...te)")
Objective C :
NSDateComponents *dayComponent = [[NSDateComponents alloc] init];
dayComponent.day = 1;
NSCalendar *theCalendar = [NSCalendar currentCalendar];
NSDate *nextDate = [theCalendar dateByAddingComponents:dayComponent toDate:[NSDate date] options:0];
NSLog(@"nextDate: %@ ...", nex...
std::back_inserter for a std::set?
...h it makes sense. My current interest is for exercising generic container allocators such as @HowardHinnant 's short_alloc.
– Don Hatch
Apr 6 at 8:35
...
PG undefinedtable error relation users does not exist
...ode:
FactoryGirl.define do
factory :user do
guid User.new.send(:new_token)
end
end
And it was erroring because User was not defined when factories.rb was being loaded. I wrapped the User.new call in a block and it solved the issue:
Fixed code:
FactoryGirl.define do
factory :user do
...
How to test if a string is JSON or not?
...ke this. Otherwise, you'd need to do lots of string analysis stuff such as tokenizing / regex operations; which would have terrible performance.
hasJsonStructure()
This is useful if your goal is to check if some data/text has proper JSON interchange format.
function hasJsonStructure(str) {
if...
Xcode iOS 8 Keyboard types not supported
...eds a "Done" button
UIBarButtonItem *doneBarButton = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self
...
Is a memory leak created if a MemoryStream in .NET is not closed?
...AK and how much LATER you mean...
If by leak you mean "the memory remains allocated, unavailable for use, even though you're done using it" and by latter you mean anytime after calling dispose, then then yes there may be a leak, although its not permanent (i.e. for the life of your applications run...
I want to delete all bin and obj folders to force all projects to rebuild everything
...re using the cmd shell on Windows then the following should work:
FOR /F "tokens=*" %%G IN ('DIR /B /AD /S bin') DO RMDIR /S /Q "%%G"
FOR /F "tokens=*" %%G IN ('DIR /B /AD /S obj') DO RMDIR /S /Q "%%G"
If you are using a bash or zsh type shell (such as git bash or babun on Windows or most Linux /...
Is “else if” a single keyword?
...
This answer dictates that how parser extract tokens. Good.
– haccks
Jun 26 '14 at 9:12
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