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When should TaskCompletionSource be used?
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I mostly use it when only an event based API is available (for example Windows Phone 8 sockets):
public Task<Args> SomeApiWrapper()
{
TaskCompletionSource<Args> tcs = new TaskCompletionSource<Args>();
var obj = new SomeApi();
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Python recursive folder read
...me in files + subdirs
]
To only include full paths to files under the base dir, leave out + subdirs.
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The Guava library: What are its most useful and/or hidden features? [closed]
...ull safe equals.
Objects.hashCode(Object...) - easy way to get a hash code based on multiple fields of your class.
Objects.firstNonNull(Object,Object) - reduces the code for getting a default value if the first value is null, especially if the first value is the result of a method call (you'd have t...
Is there a way to rename an Xcode 4 scheme?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Ng-model does not update controller value
...thing when developing AngularJS application due to the nature of prototype-based inheritance of java-script. AngularJS nested scopes are created through this mechanism. And value created from ng-model is placed in children scope, not saying parent scope (maybe the one injected into controller) won't...
How to Get a Layout Inflater Given a Context?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Can I hide the HTML5 number input’s spin box?
...er elements, so here's a snippet for hiding the spinners in webkit and moz based browsers:
input[type='number'] {
-moz-appearance:textfield;
}
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
-webkit-appearance: none;
}
<input id="test" type="number">
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Remove all the elements that occur in one list from another
...he performance of all the answers mentioned here. As expected, Arkku's set based operation is fastest.
Arkku's Set Difference - First (0.124 usec per loop)
mquadri$ python -m timeit -s "l1 = set([1,2,6,8]); l2 = set([2,3,5,8]);" "l1 - l2"
10000000 loops, best of 3: 0.124 usec per loop
Daniel Pry...
Ruby on Rails - Import Data from a CSV file
I would like to import data from a CSV file into an existing database table. I do not want to save the CSV file, just take the data from it and put it into the existing table. I am using Ruby 1.9.2 and Rails 3.
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How to center a label text in WPF?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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