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How to check if std::map contains a key without doing insert?
... overhead. In this case, if count() is implemented via find() anyway, then calling find() directly eliminates a function call... ergo, it's mature optimization. I find that using the find() call is more obvious, as well, but that's purely personal preference.
– Tim Keating
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Why {} + {} is NaN only on the client side? Why not in Node.js?
...ole._commandLineAPI = new CommandLineAPI(this._commandLineAPIImpl, isEvalOnCallFrame ? object : null);
expression = "with ((window && window.console && window.console._commandLineAPI) || {}) {\n" + expression + "\n}";
}
var result = evalFunction.call(object, expressio...
Proper way to implement IXmlSerializable?
...mation that
was written by the WriteXml method.
When this method is called, the reader
is positioned at the start of the
element that wraps the information for
your type. That is, just before the
start tag that indicates the beginning
of a serialized object. When this
method retur...
Express res.sendfile throwing forbidden error
...ath; the "../" is considered malicious. Resolve the local path first, then call res.sendfile. You can resolve the path with path.resolve beforehand.
var path = require('path');
res.sendFile(path.resolve('temp/index.html'));
...
When should TaskCompletionSource be used?
...s is that at some point, its SetResult or SetException method is being called to complete the Task<T> exposed through its Task property.
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How many Activities vs Fragments?
...hat most closely matches the tutorial mentioned in the question is the one called "Layout" in the app; or FragmentLayoutSupport in the source code.
In this demo, the logic has been moved out of the Activity and into the Fragment. The TitlesFragment actually contains the logic for changing Fragments...
How do you run multiple programs in parallel from a bash script?
... @Yash I think you can save the process IDs into an array, then call wait on the array. I think you have to use ${} to interpolate it into a string list or similar.
– trusktr
Nov 1 '18 at 21:23
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What is the meaning of erb?
...embedded in; Rails will evaluate the Ruby to add content to the file dynamically, and will output a "pure" HTML file for rendering.
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Why is '+' not understood by Python sets?
...st int/long) define this operation across a sequence of boolean values and call it "bitwise or". In fact this operation is so similar to the set union that binary integers are sometimes also called "Bit sets", where the elements in the set are taken to be the natural numbers.
Because int already d...
How to Get a Layout Inflater Given a Context?
...or nice question, in implement of method LayoutInflater.from(context) also call context.getSystemService() to get LayoutInflater Service Provider from System Manager. So may be have a litter difference in call stack.
– NguyenDat
Mar 20 '12 at 10:53
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