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What's the difference between the atomic and nonatomic attributes?

...ead B and C calling the setter with different values, thread A may get any one of the three values returned -- the one prior to any setters being called or either of the values passed into the setters in B and C. Likewise, the object may end up with the value from B or C, no way to tell. Ensuring ...
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What is the difference between a string and a byte string?

...f\x81\xce\xbdo\xcf\x82'.decode('utf-8') 'τoρνoς' Once you know which one to use, you can use the .decode() method of the byte string to get the right character string from it as above. For completeness, the .encode() method of a character string goes the opposite way: >>> 'τoρνoς...
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Sort objects in an array alphabetically on one property of the array

...ensitive sort is normal for the locale, as it is in english, this will be done for you: "Z" > 'a' // false "Z".localeCompare('a') // 1 If you wish to deviate from the locale's default, you can send along overrides in the locales and options parameters: developer.mozilla.org/en-US/docs/Web/JavaS...
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missing private key in the distribution certificate on keychain

... @Nirma How to create New one – Muju Mar 28 '19 at 11:51 1 ...
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What are the differences between git branch, fork, fetch, merge, rebase and clone?

I want to understand the difference between a branch, a fork and a clone in Git? 5 Answers ...
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How to clear MemoryCache?

...ickest way to do this? Should I loop through all the items and remove them one at a time or is there a better way? 11 Answe...
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How do ACID and database transactions work?

...micity means that you can guarantee that all of a transaction happens, or none of it does; you can do complex operations as one single unit, all or nothing, and a crash, power failure, error, or anything else won't allow you to be in a state in which only some of the related changes have happened. ...
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What are Scala context and view bounds?

... other words, A should have an implicit conversion to B available, so that one can call B methods on an object of type A. The most common usage of view bounds in the standard library (before Scala 2.8.0, anyway), is with Ordered, like this: def f[A <% Ordered[A]](a: A, b: A) = if (a < b) a el...
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Debug vs. Release performance

...gful results. "Slower" is meaningless because it is not clear whether it's one microsecond slower or twenty minutes slower. "10% slower under realistic conditions" is more meaningful. Spend the time you would have spent researching this question online on building a device which answers the quest...
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kernel stack and user space stack

...rate ] kernel stack used ? Separation of privileges and security. For one, userspace programs can make their stack(pointer) anything they want, and there is usually no architectural requirement to even have a valid one. The kernel therefore cannot trust the userspace stackpointer to be valid no...