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What is global::?

...e of resolving references to your local root scope names as well. You can test this by creating top level namespaces and classes in parts of your application then using global:: to see which ones it can access in the global namespace from different parts of your application and which ones it cannot...
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What is the rationale for all comparisons returning false for IEEE754 NaN values?

... Theoretically, if you had NaN == NaN and no isNaN, you could still test for NaN with !(x < 0 || x == 0 || x > 0), but it would have been slower and clumsier than x != x. – user2357112 supports Monica Mar 14 '17 at 7:30 ...
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What's an elegant way to conditionally add a class to an HTML element in a view?

...c record ID, and failure with boolean false or nil. This way you can just test your variable: <div class="<%= 'ok' if @success %>"> A second form using the ternary ?: operator is useful if you want to choose between two classes: <div class="<%= @success ? 'good' : 'bad' %>"...
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Example of Named Pipes

How do I write a simple--bare minimum needed for it to work--test application that illustrates how to use IPC/Named Pipes? ...
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How to implement my very own URI scheme on Android

... a concept, in a closed environment. Should this experiment ever leave its testing phase, I'll definitely consider ratifying the whole deal. – punnie Mar 16 '10 at 16:16 5 ...
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Android: How can I get the current foreground activity (from a service)?

...w is an activity by calling PackageManager.getActivityInfo(). Benefits Tested and working in Android 2.2 (API 8) through Android 7.1 (API 25). Doesn't require polling. Doesn't require the GET_TASKS permission. Disadvantages Each user must enable the service in Android's accessibility setting...
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What is a “surrogate pair” in Java?

... Adding some more info to the above answers from this post. Tested in Java-12, should work in all Java versions above 5. As mentioned here: https://stackoverflow.com/a/47505451/2987755, whichever character (whose Unicode is above U+FFFF) is represented as a surrogate pair, which Java...
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How can I install pip on Windows?

...do any of this, I just followed the instructions on pip-installer.org/en/latest/installing.html (basically you just write "python ez_setup.py" and then "python get-pip.py") – CaptainCodeman Nov 10 '13 at 19:50 ...
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Is it possible to for SQL Output clause to return a column not being inserted?

...th the source and destination tables. Here is the entire code I used to test it: CREATE TABLE ReportOption (ReportOptionID INT IDENTITY(1, 1), Field1 INT, Field2 INT) CREATE TABLE Practice (PracticeID INT IDENTITY(1, 1), Field1 INT, Field2 INT) CREATE TABLE PracticeReportOption (PracticeReportOp...
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AngularJS : How to watch service variables?

... Good question. I honestly don't know. I'll try to do some tests on how could you remove notify callback from promise. – Krym Jan 23 '15 at 14:22 add a comment...