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Algorithm to detect intersection of two rectangles?
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162
The standard method would be to do the separating axis test (do a google search on that).
In sh...
How can I count the number of matches for a regex?
...tches
When counting matches of aa in aaaa the above snippet will give you 2.
aaaa
aa
aa
To get 3 matches, i.e. this behavior:
aaaa
aa
aa
aa
You have to search for a match at index <start of last match> + 1 as follows:
String hello = "aaaa";
Pattern pattern = Pattern.compile("aa");...
How to make type=“number” to positive numbers only
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edited Aug 27 '19 at 7:44
Álvaro González
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Best data type for storing currency values in a MySQL database
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229
Something like Decimal(19,4) usually works pretty well in most cases. You can adjust the scale...
How to change Android Studio's editor font?
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142
All you have to do is click the "Save As" button to create a new profile. You can't change the f...
Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
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842
Use collections.Counter:
>>> from collections import Counter
>>> A = Counter(...
Using IQueryable with Linq
...Products table, and you want to get all of the products whose cost is >$25.
If you do:
IEnumerable<Product> products = myORM.GetProducts();
var productsOver25 = products.Where(p => p.Cost >= 25.00);
What happens here, is the database loads all of the products, and passes them ac...
PostgreSQL error: Fatal: role “username” does not exist
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edited Jun 6 at 22:57
answered Aug 12 '12 at 4:13
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How can I represent an infinite number in Python?
...d out, x is also infinity or "nan" ("not a number").
Additionally (Python 2.x ONLY), in a comparison to Ellipsis, float(inf) is lesser, e.g:
float('inf') < Ellipsis
would return true.
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Using Case/Switch and GetType to determine the object [duplicate]
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answered Apr 2 '09 at 9:10
Anton GogolevAnton Gogolev
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