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Is there a constraint that restricts my generic method to numeric types?

... argument a Calculator<T>, and in Calculator<T>, have a method called multiply. You go implement that and you pass it to the Matrix. However, this leads to fairly convoluted code, where the user has to supply their own Calculator<T> implementation, for each T that they want to us...
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Get Root Directory Path of a PHP project

...DIR gets the directory of the current file not the project root unless you call it in a file that is in the project root, but as php doesn't have the concept of a project all paths have to be absolute or relative to the current location – MikeT Nov 12 '19 at 1...
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How to run `rails generate scaffold` when the model already exists?

...ee Jarvis, this is just the command e.g; we already have an existing model called User: rails g scaffold_controller User share | improve this answer | follow ...
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JSHint and jQuery: '$' is not defined

... With my JSHint for Visual Studio, the option is called "assume jQuery" – Jowen May 7 '14 at 8:09 ...
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How can I test an AngularJS service from the console?

...is handling. For example if your app is registered on the body element you call injector = angular.element(document.body).injector() From the retrieved injector you can then get whatever service you like with injector.get('ServiceName') More information on that in this answer: Can't retrieve the i...
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How to destroy a DOM element with jQuery?

...ROY a DOM element though. Maybe you just hate $target. Poor $target, what did it ever do to you? – bobince Sep 8 '09 at 11:01 52 ...
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How do I get the full path of the current file's directory?

...th().absolute() exists in some module located at path/to/module and you're calling the module from some script located at path/to/script then would return path/to/script instead of path/to/module – YellowPillow Jun 6 '18 at 12:22 ...
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“loop:” in Java code. What is this, and why does it compile?

...o labels, url and http, a comment www.myserver.com/myfile.mp3 and a method call with a parameter that has the same name (url) as the label. Yup, this compiles (if you define the method call and the local variable elsewhere). ...
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Why are private fields private to the type, not the instance?

...ts own class, you cannot access that feature (method/field) in a qualified call. I.e. if x is a variable, x.doSomething() is not allowed. Unqualified access is allowed, of course, inside the class itself. In other words: to allow access by an instance of the same class, you have to allow the method...
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How to know/change current directory in Python shell?

...t if it's about finding other modules: You can set an environment variable called PYTHONPATH, under Linux would be like export PYTHONPATH=/path/to/my/library:$PYTHONPATH Then, the interpreter searches also at this place for imported modules. I guess the name would be the same under Windows, but d...