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LINQ Ring: Any() vs Contains() for Huge Collections
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It depends on the collection. If you have an ordered collection, then Contains might do a smart search (binary, hash, b-tree, etc.), while with `Any() you are basically stuck with enumerating until you find it (assuming LINQ-to-Objects).
Also note that in your example,...
How can I read inputs as numbers?
...erstand the implication).
Python 2's equivalent of Python 3's input is the raw_input function.
Python 2.x
There were two functions to get user input, called input and raw_input. The difference between them is, raw_input doesn't evaluate the data and returns as it is, in string form. But, input wi...
How to iterate over a JSONObject?
...e careful everyone, jObject.keys() returns the iterator with reverse index order.
– macio.Jun
Aug 31 '13 at 17:36
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What is the point of the diamond operator () in Java 7?
... generic type List<String> where on the right side you are using the raw type LinkedList. Raw types in Java effectively only exist for compatibility with pre-generics code and should never be used in new code unless
you absolutely have to.
Now, if Java had generics from the beginning and did...
Reduce, fold or scan (Left/Right)?
...alue. Will always result a single value.
Scan is used for some processing order of items from left or right hand side, then we can make use of previous result in subsequent calculation. That means we can scan items. Will always result a collection.
LEFT_REDUCE method works similar to REDUCE Metho...
Convert JSON String to Pretty Print JSON output using Jackson
...SONObject(json)).toString(4); for some reason the second one is losing the order of keys
– Michail Michailidis
Jan 28 '19 at 20:55
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Does Python support short-circuiting?
...cuiting. As shown in the docs; they evaluate each element of a sequence in-order, until finding a result that allows an early exit in the evaluation. Consider examples below to understand both.
The function any() checks if any element is True. It stops executing as soon as a True is encountered an...
STL or Qt containers?
...l summarized by J. Blanchette: "Whereas STL's containers are optimized for raw speed, Qt's container classes have been carefully designed to provide convenience, minimal memory usage, and minimal code expansion."
The above link provides more details about the implementation of the QTL and what optim...
A Better Django Admin ManyToMany Field Widget
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you could try using a raw id in the admin.
and the django docs:
http://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.raw_id_fields
if you are looking for something with auto-complete you might want to look at t...
Android ListView Divider
...The drawable to use.
*/
Looks like setDividerHeight() must be called in order for the divider to show up if it has no intrinsic height
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