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Check if object is file-like in Python

... common meanings are "has read(size)", "has read()", or "is an iterable of strings", but some old libraries may expect readline instead of one of those, some libraries like to close() files you give them, some will expect that if fileno is present then other functionality is available, etc. And simi...
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Input text dialog Android

... like a text Dialog to appear and I would like to store the result in a String . I'd like the text Dialog to overlay the current screen. How can I do this? ...
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How can I pass a parameter to a setTimeout() callback?

...4000) You need to feed an anonymous function as a parameter instead of a string, the latter method shouldn't even work per the ECMAScript specification but browsers are just lenient. This is the proper solution, don't ever rely on passing a string as a 'function' when using setTimeout() or setInte...
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Check for internet connection availability in Swift

...ctedToNetwork()->Bool{ var Status:Bool = false let url = NSURL(string: "http://google.com/") let request = NSMutableURLRequest(URL: url!) request.HTTPMethod = "HEAD" request.cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringLocalAndRemoteCacheData request.timeoutInterva...
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Fastest way to copy file in node.js

...eReadStream/createWriteStream method working for some reason, but using fs-extra npm module it worked right away. I am not sure of the performance difference though. fs-extra npm install --save fs-extra var fs = require('fs-extra'); fs.copySync(path.resolve(__dirname,'./init/xxx.json'), 'xxx.jso...
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Overriding superclass property with different type in Swift

... This seems to work class Chassis { func description() -> String { return "Chassis" } } class RacingChassis : Chassis { override func description() -> String { return "Racing Chassis" } func racingChassisMethod() -> String { return "Wro...
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How to send emails from my Android application?

...N_SEND); i.setType("message/rfc822"); i.putExtra(Intent.EXTRA_EMAIL , new String[]{"recipient@example.com"}); i.putExtra(Intent.EXTRA_SUBJECT, "subject of email"); i.putExtra(Intent.EXTRA_TEXT , "body of email"); try { startActivity(Intent.createChooser(i, "Send mail...")); } catch (android.c...
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Understanding the map function

...an example of what you asked for in the comments on the question - "turn a string into an array", by 'array' you probably want either a tuple or a list (both of them behave a little like arrays from other languages) - >>> a = "hello, world" >>> list(a) ['h', 'e', 'l', 'l', 'o', ...
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How to set custom favicon in Express?

...e path stuff and namely that path.join(__dirname, "public") results in the strings concatenated without a separator? The smaller the sample the quicker we can fix this (so if you can please just the join part). – Benjamin Gruenbaum Aug 1 '16 at 12:56 ...
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Do fragments really need an empty constructor?

...ndle) For example: public static final MyFragment newInstance(int title, String message) { MyFragment f = new MyFragment(); Bundle bdl = new Bundle(2); bdl.putInt(EXTRA_TITLE, title); bdl.putString(EXTRA_MESSAGE, message); f.setArguments(bdl); return f; } And of course gr...