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Sending files using POST with HttpURLConnection

...nn.connect(); if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) { return readStream(conn.getInputStream()); } } catch (Exception e) { Log.e(TAG, "multipart post error " + e + "(" + urlString + ")"); } return null; } private static Str...
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Passing Data between View Controllers

...A) // in ContollerA.m - (void)viewDidLoad { [super viewDidLoad]; __unsafe_unretained typeof(self) weakSelf = self; self.selectedVoucherBlock = ^(NSString *voucher) { weakSelf->someLabel.text = voucher; }; } Go to Controller B UIStoryboard *storyboard = [UIStoryboard s...
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Change Twitter Bootstrap Tooltip content on click

.... Another way (see @lukmdo comment below): $(element).attr('title', 'NEW_TITLE') .tooltip('fixTitle') .tooltip('show'); share | improve this answer | ...
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How are VST Plugins made?

...in.def). This needs to contain at least the following lines: EXPORTS main=_main Borland compilers add an underscore to function names, and this exports the main() function the way a VST host expects it. For more information about .def files, see the C++Builder help files. This is not enough, tho...
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How to declare a global variable in JavaScript?

... With jQuery you can just do this, no matter where the declaration is: $my_global_var = 'my value'; And will be available everywhere. I use it for making quick image galleries, when images are spread in different places, like so: $gallery = $('img'); $current = 0; $gallery.each(function(i,v){ ...
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Make a Bash alias that takes a parameter?

... and a function are not equivalent... echo -e '#!/bin/bash\nshopt -s expand_aliases\nalias asrc='\''echo "${BASH_SOURCE[0]}"'\'' # note the '\''s\nfunction fsrc(){ echo "${BASH_SOURCE[0]}";}'>>file2&&echo -e '#!/bin/bash\n. file2\nalias rl='\''readlink -f'\''\nrl $(asrc)\nrl $(fsrc)'&g...
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How to use Global Variables in C#?

...s, as follows: public static class Globals { public const Int32 BUFFER_SIZE = 512; // Unmodifiable public static String FILE_NAME = "Output.txt"; // Modifiable public static readonly String CODE_PREFIX = "US-"; // Unmodifiable } You can then retrieve the defined values anywhere in you...
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Git - Undo pushed commits

... You can revert individual commits with: git revert <commit_hash> This will create a new commit which reverts the changes of the commit you specified. Note that it only reverts that specific commit, and not commits after that. If you want to revert a range of commits, you can do...
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Finding sum of elements in Swift array

...parameter: extension Sequence { func sum<T: AdditiveArithmetic>(_ keyPath: KeyPath<Element, T>) -> T { reduce(.zero) { $0 + $1[keyPath: keyPath] } } } Usage: struct Product { let id: String let price: Decimal } let products: [Product] = [.init(id: "abc", price: 21.9), ...
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Javascript: best Singleton pattern [duplicate]

...lution found: http://code.google.com/p/jslibs/wiki/JavascriptTips#Singleton_pattern function MySingletonClass () { if (arguments.callee._singletonInstance) { return arguments.callee._singletonInstance; } arguments.callee._singletonInstance = this; this.Foo = function () { // ... ...