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ruby 1.9: invalid byte sequence in UTF-8
... writing a crawler in Ruby (1.9) that consumes lots of HTML from a lot of random sites.
When trying to extract links, I decided to just use .scan(/href="(.*?)"/i) instead of nokogiri/hpricot (major speedup). The problem is that I now receive a lot of " invalid byte sequence in UTF-8 " errors.
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How does numpy.histogram() work?
...ere are 3 bins, for values ranging from 0 to 1 (excl 1.), 1 to 2 (excl. 2) and 2 to 3 (incl. 3), respectively. The way Numpy defines these bins if by giving a list of delimiters ([0, 1, 2, 3]) in this example, although it also returns the bins in the results, since it can choose them automatically f...
Auto Resize Image in CSS FlexBox Layout and keeping Aspect Ratio?
...oking for an answer to my distorted images" i got here for the same reason and your solution helped me (what was marked as the actual solution didn't help me at all)
– Wagner Danda da Silva Filho
Jun 29 '16 at 17:30
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How to install pip for Python 3 on Mac OS X?
...all my own personal Python stuff with 3.3. I just flushed my 3.3.2 install and installed the new 3.3.3. So I need to install pyserial again. I can do it the way I've done it before, which is:
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Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?
...ere's nothing wrong with that statement; you're just multiplying 4 numbers and assigning it to an int, there just happens to be an overflow. This is different than assigning a single literal, which would be bounds-checked at compile-time.
It is the out-of-bounds literal that causes the error, not t...
Polymorphism in C++
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Understanding of / requirements for polymorphism
To understand polymorphism - as the term is used in Computing Science - it helps to start from a simple test for and definition of it. Consider:
Type1 x;
Type2 y;
f(x)...
Unable to login to SQL Server + SQL Server Authentication + Error: 18456
... see whether that user has relevant privileges on that SQL Server instance and relevant database too, thats good. Obviously if the necessary prvileges are not been set then you need to fix that issue by granting relevant privileges for that user login.
Althought if that user has relevant grants on ...
Why does C# allow {} code blocks without a preceding statement?
...estrict the scope of some local variables. This is further elaborated here and here. Look at João Angelo’s answer and Chris Wallis’s answer for brief examples. I believe the same applies to some other languages with C-style syntax as well, not that they’d be relevant to this question though.
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Send message to specific client with socket.io and node.js
I'm working with socket.io and node.js and until now it seems pretty good, but I don't know how to send a message from the server to an specific client, something like this:
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How to subtract date/time in JavaScript? [duplicate]
I have a field at a grid containing date/time and I need to know the difference between that and the current date/time. What could be the best way of doing so?
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