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Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
...eded - as with all function declarations that use identifier lists. So the caller has to know the types and the count precisely before-hand. So if the caller calls the function giving it some argument, the behavior is undefined. The stack could become corrupted for example, because the called functi...
Android, ListView IllegalStateException: “The content of the adapter has changed but ListView did no
...t outside the UI thread.
Solution: I have done both, adding the items and called notifyDataSetChanged() in the UI thread.
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Angular HttpPromise: difference between `success`/`error` methods and `then`'s arguments
According to AngularJS doc , calls to $http return the following:
6 Answers
6
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MongoDB not equal to
...hor : 'you', post: "how to query"})
db.test.find({'post': {$ne : ""}})
{ "_id" : ObjectId("4f68b1a7768972d396fe2268"), "author" : "you", "post" : "how to query" }
And now $not, which takes in predicate ($ne) and negates it ($not):
db.test.find({'post': {$not: {$ne : ""}}})
{ "_id" : ObjectId("4f6...
How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searc
...It also should be used when the directory to be searched needs to be dynamically determined during runtime - e.g. from the script's command line parameters or script's path (see the FindBin module for very nice use case).
If the directories in @INC need to be manipulated according to some complicate...
How to move a model between two Django apps (Django 1.7)
So about a year ago I started a project and like all new developers I didn't really focus too much on the structure, however now I am further along with Django it has started to appear that my project layout mainly my models are horrible in structure.
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How to map with index in Ruby?
...1.9, you can use the fact that iterator methods like each_with_index, when called without a block, return an Enumerator object, which you can call Enumerable methods like map on. So you can do:
arr.each_with_index.map { |x,i| [x, i+2] }
In 1.8.6 you can do:
require 'enumerator'
arr.enum_for(:eac...
How to get a function name as a string?
In Python, how do I get a function name as a string, without calling the function?
12 Answers
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Business logic in MVC [closed]
.... You can segregate data and business logic within this layer, and you can call the data portion of this layer your "model", but that's not what the "M" in "MVC" is referring to.
– Mud
Aug 3 '18 at 15:56
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Updating packages in Emacs
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In order to automatically update the list of packages, only if there is no package list already, use the following:
(when (not package-archive-contents)
(package-refresh-contents))
In order to update all installed packages, type package-l...