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How to check if activity is in foreground or in visible background?

...stem dialogue box pops-up and I only want to finish() ; once the user has selected an option from the dialogue box? 23 An...
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Cosine Similarity between 2 Number Lists

... scientific routines for example, "routines for computing integrals numerically, solving differential equations, optimization, and sparse matrices." It uses the superfast optimized NumPy for its number crunching. See here for installing. Note that spatial.distance.cosine computes the distance, and ...
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Overriding fields or properties in subclasses

...his is how a truly polymorphic implementation of your property might look, allowing the derived classes to be in control. abstract class Parent { abstract public int MyInt { get; } } class Father : Parent { public override int MyInt { get { /* Apply formula "X" and return a val...
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How to do Base64 encoding in node.js?

...uld be .toString("binary") (atob stands for ascii(base64) to binary, after all) – 12Me21 Jan 14 at 19:55 @12Me21 I tho...
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NUnit Test Run Order

By default nunit tests run alphabetically. Does anyone know of any way to set the execution order? Does an attribute exist for this? ...
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Write a program to find 100 largest numbers out of an array of 1 billion numbers

...ulate this probability. For example, lets assume the numbers were randomly selected uniformly from {0, 1}, the expected value of (i-K)th number (out of i numbers) is (i-k)/i, and chance of a random variable being larger than this value is 1-[(i-k)/i] = k/i. Thus, the expected number of insertions ...
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How to check if two arrays are equal with JavaScript? [duplicate]

...e // the array, you should sort both arrays here. // Please note that calling sort on an array will modify that array. // you might want to clone your array first. for (var i = 0; i < a.length; ++i) { if (a[i] !== b[i]) return false; } return true; } ...
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UIRefreshControl without UITableViewController

...ng a UIRefreshControl instance as a subview to my UITableView. And it magically just works! UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init]; [refreshControl addTarget:self action:@selector(handleRefresh:) forControlEvents:UIControlEventValueChanged]; [self.myTableView addSubview:...
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How to make a SPA SEO crawlable?

...-state enabled; I also use Breezejs for client-server data interaction, all of which I strongly recommend, but I'll try to give a general enough explanation that will also help people using other platforms. ...
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Twitter API returns error 215, Bad Authentication Data

I am trying to call following Twitter's API to get a list of followers for a user. 15 Answers ...