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How does RegexOptions.Compiled work?

...ression into IL using lightweight code generation (LCG). This compilation happens during the construction of the object and heavily slows it down. In turn, matches using the regular expression are faster. If you do not specify this flag, your regular expression is considered "interpreted". Take th...
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How to define a reply-to address?

...lass Notifications < ActionMailer::Base default :from => 'your_app@your_domain.com', :reply_to => 'some_other_address@your_domain.com' end Or: class Contacts < ActionMailer::Base def new_contact mail( :to => 'somebody@some_domain.com', :from ...
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How do I concatenate strings in Swift?

... \ this is being used to append one string to another string. var first = "Hi" var combineStr = "\(first) Start develop app for swift" You can try this also:- + keyword. var first = "Hi" var combineStr = "+(first) Start develop app for swift...
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Gradle proxy configuration

...he_web_via_a_proxy Update You can also put these properties into gradle-wrapper.properties (see: https://stackoverflow.com/a/50492027/474034). share | improve this answer | ...
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What does the “at” (@) symbol do in Python?

...n # the function gets passed onto 'topping'. self.toppings.append(topping()) def __repr__(self): return str(self.toppings) pizza = Pizza() @pizza def cheese(): return 'cheese' @pizza def sauce(): return 'sauce' print pizza # ['cheese', 'sauce'] This shows th...
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iPhone get SSID without private library

I have a commercial app that has a completely legitimate reason to see the SSID of the network it is connected to: If it is connected to a Adhoc network for a 3rd party hardware device it needs to be functioning in a different manner than if it is connected to the internet. ...
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How to create P12 certificate for iOS distribution

We have an iOS app whose push notification cert has expired and we're trying to create a new one. I've created new certs in the Provisioning portal (ios_developer.cer, ios_distribution.cer) and downloaded them. I was following instructions here on Stack Overflow to convert it to PEM and then to ...
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What's wrong with foreign keys?

... should probably go that route if any of the reasons in the second section apply. share | improve this answer | follow | ...
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Is “IF” expensive?

...is all mean for performance? When the processor sees a branch instruction appear in its pipeline, it needs to figure out how to continue to fill up its pipeline. In order to figure out what instructions come after the branch in the program stream, it needs to know two things: (1) if the branch wil...
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Exclude all transitive dependencies of a single dependency

...in the exclusion element. I have a multi-module project that contains an "app" module that is referenced in two WAR-packaged modules. One of those WAR-packaged modules really only needs the domain classes (and I haven't separated them out of the app module yet). I found this to work: <dependenc...