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Bash script error [: !=: unary operator expected

...nding '-v' anywhere (provided it exists). This means command line argument order is not important. Be forewarned, as presented, the variable arg_match is set, thus it is merely a flag. It allows for multiple occurrences of the '-v' arg. One could ignore all other occurrences of '-v' easy enough. ...
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How to get first N elements of a list in C#?

...ften it's convenient to get the first five items according to some kind of order: var firstFiveArrivals = myList.OrderBy(i => i.ArrivalTime).Take(5); share | improve this answer | ...
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Are global variables bad? [closed]

...ms, but there are usually additional complex logic that you need to add in order to make sure these magical variables behave properly. – user2167582 Feb 26 '18 at 3:31 3 ...
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What is the difference between service, directive and module?

....js modules, Angular modules don't try to solve the problem of script load ordering or lazy script fetching. These goals are orthogonal and both module systems can live side by side and fulfill their goals (so the docs claim). Services are singletons, so there is only one instance of each servic...
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How to copy files across computers using SSH and MAC OS X Terminal [closed]

...how to use the cp and ssh commands but I'm not sure how to use them in order to transfer files from one computer to another. ...
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How to convert an array of strings to an array of floats in numpy?

... numpy as np a = ["1.1", "2.2", "3.2"] b = np.asarray(a, dtype=np.float64, order='C') For Python 2*: print a, type(a), type(a[0]) print b, type(b), type(b[0]) resulting in: ['1.1', '2.2', '3.2'] <type 'list'> <type 'str'> [1.1 2.2 3.2] <type 'numpy.ndarray'> <type 'numpy.f...
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How to write header row with csv.DictWriter?

... writeheader() method now available in 2.7 / 3.2: from collections import OrderedDict ordered_fieldnames = OrderedDict([('field1',None),('field2',None)]) with open(outfile,'wb') as fou: dw = csv.DictWriter(fou, delimiter='\t', fieldnames=ordered_fieldnames) dw.writeheader() # continue o...
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Is there any performance reason to declare method parameters final in Java?

...wever, i have no clue if this is done in practice, but it could be done in order to save some memory. share | improve this answer | follow | ...
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AngularJS: How to clear query parameters in the URL?

...ularJS application needs to have access to the user's LinkedIn profile. In order to do that I need to redirect the user to a LinkedIn URL which contains a callback redirect_uri parameter which will tell LinkedIn to redirect the user back to my webapp and include a "code" query param in the URL. It's...
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What is JSONP, and why was it created?

...ave to use script HTML tags, the ones you usually use to load js files, in order for js to get data from another domain. Sounds weird? Thing is - turns out script tags can be used in a fashion similar to XMLHttpRequest! Check this out: script = document.createElement('script'); script.type = 'text...