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How to check if a variable exists in a FreeMarker template?

... In case anyone else was thrown off by this, the #if syntax should be surrounded by less than and greater than characters rather than brackets. for instance: <#if userName??> – Cameron Mar 17 '10 at 18:23 ...
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Optional Parameters in Go?

...that it could also be confusing and fragile in practice. Matching only by name and requiring consistency in the types was a major simplifying decision in Go's type system. share | improve...
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How to install PyQt4 on Windows using pip?

... Here are Windows wheel packages built by Chris Golke - Python Windows Binary packages - PyQt In the filenames cp27 means C-python version 2.7, cp35 means python 3.5, etc. Since Qt is a more complicated system with a compiled C++ codebase underlying the python i...
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How to define object in array in Mongoose schema correctly with 2d geo index

... You can declare trk by the following ways : - either trk : [{ lat : String, lng : String }] or trk : { type : Array , "default" : [] } In the second case during insertion make the object and push it into the array like db.u...
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Find() vs. Where().FirstOrDefault()

...es that came in earlier .NET versions that were made obsolete or redundant by later versions. share | improve this answer | follow | ...
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Why / when would it be appropriate to override ToString?

... you get a string representation of your object in another way? Yes. But by using ToString you are using a method that is common to all objects and thus other classes know about this method. For instance, whenever the .NET framework wants to convert an object to a string representation, ToString i...
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How can I auto increment the C# assembly version via our CI platform (Hudson)?

...native is to let the C# environment increment the assembly version for you by setting the version attribute to major.minor.* (as described in the AssemblyInfo file template.) You may be looking for a more comprehensive solution, though. EDIT (Response to the question in a comment): From AssemblyI...
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How to close this ssh tunnel? [closed]

... Nice answer! By the way, -9 is not needed for kill, considering the process is still working fine ;-) – Lucio Paiva Sep 27 '17 at 0:00 ...
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Mockito: Inject real objects into private @Autowired fields

... @Dev Blanked answer, if you want to use an existing bean that was created by Spring the code can be modified to: @RunWith(MockitoJUnitRunner.class) public class DemoTest { @Inject private ApplicationContext ctx; @Spy private SomeService service; @InjectMocks private Demo...
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What is the difference between YAML and JSON?

...ly being used more for offline data processes. For example, it is included by default in the C-based OpenCV computer vision package, whereas JSON is not. You will find C libraries for both JSON and YAML. YAML's libraries tend to be newer, but I have had no trouble with them in the past. See for ex...