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django template display item value or empty string

...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
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ReadOnlyCollection or IEnumerable for exposing member collections?

... answered Jan 29 '09 at 13:32 Jon SkeetJon Skeet 1211k772772 gold badges85588558 silver badges88218821 bronze badges ...
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How to get the function name from within that function?

... ret = ret.substr(0, ret.indexOf('(')); return ret; } Using Function.caller is non-standard. Function.caller and arguments.callee are both forbidden in strict mode. Edit: nus's regex based answer below achieves the same thing, but has better performance! In ES6, you can just use myFunction.na...
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Ruby on Rails: Where to define global constants?

... If your model is really "responsible" for the constants you should stick them there. You can create class methods to access them without creating a new object instance: class Card < ActiveRecord::Base def self.colours ['white', 'blue'...
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How do I get user IP address in django?

...re you have reverse proxy (if any) configured correctly (e.g. mod_rpaf installed for Apache). Note: the above uses the first item in X-Forwarded-For, but you might want to use the last item (e.g., in the case of Heroku: Get client's real IP address on Heroku) And then just pass the request as argu...
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Update my github repo which is forked out from another project [duplicate]

... that must be done in your local repo. The repo hosted on github is essentially a way of publishing what you've done locally. All you can really do with it is push/pull, and browse what's there. share | ...
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MongoDB: Find a document by non-existence of a field?

...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
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What is the Swift equivalent of -[NSObject description]?

...Peter Ahlberg 1,10622 gold badges1919 silver badges2323 bronze badges add a comment  |  ...
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.keyCode vs. .which

...tE: If not using jQuery, you have to handle this explicitly yourself. I usually do it like this var key = event.which || event.keyCode; That will use event.which if it's defined and not falsey, or event.keyCode if which is undefined or falsey. Technically I should probably do var key = typeof event....
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Visual Studio Wcf Test Client - entering an Int array

... Sameer Alibhai 2,74644 gold badges3232 silver badges3535 bronze badges answered Apr 30 '10 at 8:28 Darin DimitrovDarin Dimitrov ...