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Why use symbols as hash keys in Ruby?
A lot of times people use symbols as keys in a Ruby hash.
4 Answers
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When to use RDLC over RDL reports?
I have been studying SSRS 2005 / 2008 in the past weeks and have created some server side reports. For some application, a colleague suggested that I look into RDLC for that particular situation. I am now trying to get my head around the main difference between RDL and RDLC.
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Java to Clojure rewrite
I have just been asked by my company to rewrite a largish (50,000 single lines of code) Java application (a web app using JSP and servlets) in Clojure. Has anyone else got tips as to what I should watch out for?
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RE error: illegal byte sequence on Mac OS X
...ing in a Makefile on Mac OS X for cross-compiling to iOS. The string has embedded double quotes. The command is:
7 Answers
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parseInt(null, 24) === 23… wait, what?
...d with parseInt to see how it handles values not yet initialized and I stumbled upon this gem. The below happens for any radix 24 or above.
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How can I know which parts in the code are never used?
... have legacy C++ code that I'm supposed to remove unused code from. The problem is that the code base is large.
18 Answers
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How do I find Waldo with Mathematica?
This was bugging me over the weekend: What is a good way to solve those Where's Waldo? [ 'Wally' outside of North America] puzzles, using Mathematica (image-processing and other functionality)?
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Are there disadvantages to using a generic varchar(255) for all text-based fields?
I have a contacts table which contains fields such as postcode , first name , last name , town , country , phone number etc, all of which are defined as VARCHAR(255) even though none of these fields will ever come close to having 255 characters. (If you're wondering, it's this way becaus...
Explain which gitignore rule is ignoring my file
Is there any way to see why some file is getting ignored by git (i.e. which rule in a .gitignore file is causing the file to be ignored)?
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How to navigate through a vector using iterators? (C++)
... the [] operator or the "at" method. From what I understand, iterators can be used to navigate through containers, but I've never used iterators before, and what I'm reading is confusing.
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