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JavaScript hashmap equivalent

... Hash your objects yourself manually, and use the resulting strings as keys for a regular JavaScript dictionary. After all, you are in the best position to know what makes your objects unique. That's what I do. Example: var key = function(obj){ // Some un...
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Nested classes' scope?

...e will use that object the next time it is executed.) If you instead want all Inner objects to have a reference to an Outer because outer_var is really an instance attribute: class Outer(object): def __init__(self): self.outer_var = 1 def get_inner(self): return self.Inner...
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What's the $unwind operator in MongoDB?

...hat it stores your data is in the form of documents and collections, which allows for a dynamic means of adding and obtaining the data from your storage locations. That being said, in order to understand the concept behind the $unwind parameter, you first must understand what the use case that you ...
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Finding the source code for built-in Python functions?

...out what file a particular module or function is implemented in you can usually print the __file__ attribute. Alternatively, you may use the inspect module, see the section Retrieving Source Code in the documentation of inspect. For built-in classes and methods this is not so straightforward since ...
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NuGet for solutions with multiple projects

...ager > Manage NuGet Packages for Solution... And if you go to the Installed packages area you can 'Manage' a single package across every project in the solution. share | improve this answer ...
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Leaflet - How to find existing markers, and delete markers?

... Should be a way to collect all of the layers used by Leaflet. :/ – jackyalcine Aug 1 '12 at 21:39 10 ...
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How do I list all tables in a schema in Oracle SQL?

How do i list all tables in a schema in Oracle SQL? 14 Answers 14 ...
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Tree data structure in C#

...e so many ways you could implement it that it would be impossible to cover all bases with one solution. The more specific a solution, the less likely it is applicable to any given problem. I even get annoyed with LinkedList - what if I want a circular linked list? The basic structure you'll need ...
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Python function attributes - uses and abuses [closed]

... I typically use function attributes as storage for annotations. Suppose I want to write, in the style of C# (indicating that a certain method should be part of the web service interface) class Foo(WebService): @webmethod de...
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Share Large, Read-Only Numpy Array Between Multiprocessing Processes

...od reference example. I don't need any kind of locks, since the array (actually a matrix) will be read-only. Now, due to its size, I'd like to avoid a copy. It sounds like the correct method is to create the only copy of the array as a sharedmem array, and then pass it to the Process objects...