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What is the _snowman param in Ruby on Rails 3 forms for?
...e is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up.
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Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
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An existing connection was forcibly closed by the remote host
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Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
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Unable to execute dex: GC overhead limit exceeded in Eclipse
...can be fixed by changing the VM values in Eclipse.ini. Set the values to 512 and 1024 as below:
openFile
--launcher.XXMaxPermSize
512M
-showsplash
org.eclipse.platform
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms512m
-Xmx1024m
The changed area in image
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ruby 1.9: invalid byte sequence in UTF-8
I'm 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....
How to deal with floating point number precision in JavaScript?
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Why do indexes in XPath start with 1 and not 0?
...king about our experience with VBScript with its odd features such as 1-based index instead of 0-based indexes like almost every other language has, the reasoning being that it was a language for users (e.g. Excel VBA) instead of a language for developers.
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How to merge 2 List and removing duplicate values from it in C#
...elements
in the input sequences including
duplicates.
List<int> list1 = new List<int> { 1, 12, 12, 5};
List<int> list2 = new List<int> { 12, 5, 7, 9, 1 };
List<int> ulist = list1.Union(list2).ToList();
// ulist output : 1, 12, 5, 7, 9
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip.
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