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Why are my basic Heroku apps taking two seconds to load?

I created two very simple Heroku apps to test out the service, but it's often taking several seconds to load the page when I first visit them: ...
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Insert HTML with React Variable Statements (JSX)

I am building something with React where I need to insert HTML with React Variables in JSX. Is there a way to have a variable like so: ...
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Regular expression to allow spaces between words

...bols and only allows letters and numbers. The regex below works great, but it doesn't allow for spaces between words. 15 An...
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targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi

... OK, answer is no, there is no way to do this without subclassing UICollectionViewFlowLayout. However, subclassing it is incredibly easy for anyone who is reading this in the future. First I set up the subclass call MyCollectionViewFlowLayout and then in interface build...
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Pointer to class data member “::*”

... It's a "pointer to member" - the following code illustrates its use: #include <iostream> using namespace std; class Car { public: int speed; }; int main() { int Car::*pSpeed = &Car::speed; Car c1...
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Verify a certificate chain using openssl verify

I'm building a own certificate chain with following componenents: 7 Answers 7 ...
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Implementing two interfaces in a class with same method. Which interface method is overridden?

Two interfaces with same method names and signatures. But implemented by a single class then how the compiler will identify the which method is for which interface? ...
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Android: Force EditText to remove focus? [duplicate]

I would like to be able to remove the focus from the EditText. For example if the Keyboard appears, and the user hides it with the back button, I would like the focus and the cursor to disappear. How can it be done? ...
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Android update activity UI from service

...or new task all the time. If there is new task, I want to refresh the activity UI to show that info. I did find https://github.com/commonsguy/cw-andtutorials/tree/master/18-LocalService/ this example. Is that a good approch ? Any other examples? ...
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How to remove an HTML element using Javascript?

... What's happening is that the form is getting submitted, and so the page is being refreshed (with its original content). You're handling the click event on a submit button. If you want to remove the element and not submit the form, handle the submit event on the form instea...