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Check if a variable is a string in JavaScript

...ing both typeof and instanceof feels like good advice if your code may be called by others'. @MarkAmery's postmessage edge case matters if you're asking "what was I just postmessaged?" - but you'd expect that to be handled at the interface and not allowed to propagate. Elsewhere, it seems correct t...
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No route matches [GET] /assets

...nment. I ran RAILS_ENV=production rake assets:precompile which generated all of my assets in /public/assets. The problem is that when I start my app w/ RAILS_ENV=production rails s thin I get: ...
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JavaScript curry: what are the practical applications?

...self—is useful in JavaScript; it is a technique for converting function calls with multiple arguments into chains of function calls with a single argument for each call, but JavaScript supports multiple arguments in a single function call. In JavaScript—and I assume most other actual languages...
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Nested Models in Backbone.js, how to approach

...n modify the parse method to change a attributes around in the object, but all of that is actually pretty unmaintainable code IMO, and feels more of a hack than a solution. Here's what I suggest for your example: First define your Layout Model like so. var layoutModel = Backbone.Model.extend({});...
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Extracting .jar file with command line

...the program from inside the folder. EDIT: Here's another article, specifically focussed on extracting JARs: http://docs.oracle.com/javase/tutorial/deployment/jar/unpack.html share | improve this an...
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How do I use extern to share variables between source files?

...ler is informed that a variable exists (and this is its type); it does not allocate the storage for the variable at that point. A variable is defined when the compiler allocates the storage for the variable. You may declare a variable multiple times (though once is sufficient); you may only defin...
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How to suppress scientific notation when printing float values?

...cify how many digit after the . you wish to display, this depends on how small is the floating number). See this example: >>> a = -7.1855143557448603e-17 >>> '{:f}'.format(a) '-0.000000' as shown above, default is 6 digits! This is not helpful for our case example, so instead we...
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Should a return statement be inside or outside a lock?

... answered Nov 5 '08 at 21:16 Marc Gravell♦Marc Gravell 888k227227 gold badges23562356 silver badges27202720 bronze badges ...
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How can I get dictionary key as variable directly in Python (not by searching from value)?

...+ add () to print. – Honiix Dec 12 '16 at 9:03 add a comment  |  ...
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Find intersection of two nested lists?

... 3 filter returns an iterable instead of list, so you need to wrap filter calls with list(): c3 = [list(filter(lambda x: x in c1, sublist)) for sublist in c2] Explanation: The filter part takes each sublist's item and checks to see if it is in the source list c1. The list comprehension is exec...