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Fast way to discover the row count of a table in PostgreSQL
I need to know the number of rows in a table to calculate a percentage. If the total count is greater than some predefined constant, I will use the constant value. Otherwise, I will use the actual number of rows.
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Drawing a dot on HTML5 canvas [duplicate]
Drawing a line on the HTML5 canvas is quite straightforward using the context.moveTo() and context.lineTo() functions.
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Does it make sense to use “as” instead of a cast even if there is no null check? [closed]
In development blogs, online code examples and (recently) even a book, I keep stumbling about code like this:
13 Answers
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How to handle exceptions in a list comprehensions?
I have some a list comprehension in Python in which each iteration can throw an exception.
6 Answers
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How can I write a heredoc to a file in Bash script?
How can I write a here document to a file in Bash script?
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Is there a working C++ refactoring tool? [closed]
Does anybody know a fully featured refactoring tool for C++ that works reliably with large code bases (some 100.000 lines)?
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Position icons into circle
How can I position several <img> elements into a circle around another and have those elements all be clickable links as well? I want it to look like the picture below, but I have no idea how to achieve that effect.
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How can I pair socks from a pile efficiently?
Yesterday I was pairing the socks from the clean laundry and figured out the way I was doing it is not very efficient. I was doing a naive search — picking one sock and "iterating" the pile in order to find its pair. This requires iterating over n/2 * n/4 = n 2 /8 socks on average.
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AES vs Blowfish for file encryption
I want to encrypt a binary file. My goal is that to prevent anyone to read the file who doesn't have the password.
7 Answer...
Is there an easy way to add a border to the top and bottom of an Android View?
I have a TextView and I'd like to add a black border along its top and bottom borders. I tried adding android:drawableTop and android:drawableBottom to the TextView, but that only caused the entire view to become black.
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