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IEnumerable to string [duplicate]

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Spinlock versus Semaphore

...e acquired by burning a few cycles spinning, this may overall very well be more efficient. Also, for realtime applications it may not be acceptable to block and wait for the scheduler to come back to them at some far away time in the future. A semaphore, by contrast, either does not spin at all, or...
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How do I merge a list of dicts into a single dict?

...esn't match your output because dicts are unordered if the dicts can have more than one key/value >>> dict(j for i in L for j in i.items()) share | improve this answer | ...
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Use 'import module' or 'from module import'?

... typing mo.foo) from module import foo Pros: Less typing to use foo More control over which items of a module can be accessed Cons: To use a new item from the module you have to update your import statement You lose context about foo. For example, it's less clear what ceil() does compared ...
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jQuery.ajax handling continue responses: “success:” vs “.done”?

...ion in the ajax call. However, since the implementation of $.Deferreds and more sophisticated callbacks, done is the preferred way to implement success callbacks, as it can be called on any deferred. For example, success: $.ajax({ url: '/', success: function(data) {} }); For example, done: ...
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How to check a not-defined variable in JavaScript

...ct quote from a mailing list, & should probably be edited to make that more clear, as the original author is not available to clarify. – Jason S May 13 '09 at 15:46 11 ...
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How to make PowerShell tab completion work like Bash

... MenuComplete instead of Complete is more like bash, it lets you use the arrow keys to choose from the available options – stib Aug 17 '17 at 2:28 ...
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How to check if object has any properties in JavaScript?

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Should I initialize variable within constructor or outside constructor [duplicate]

...ay. With style 1, you need to look at the constructor as well. If you have more than one constructor, you don't have to repeat the initializations (and you cannot forget them). Of course, if the initialization value is different in different constructors (or even calculated in the constructor), yo...
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adding and removing classes in angularJs using ng-click

... What about if I want use this code for more than one div in the same view? this code actuali change class for all div, how I can apply class only to the selected clicked item – xzegga Apr 24 '14 at 4:44 ...