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What is the difference between Ruby 1.8 and Ruby 1.9
...01:0> {1,2}
=> {1=>2}
Action: Convert to {1 => 2}
Array.to_s Now Contains Punctuation
Ruby 1.9
irb(main):001:0> [1,2,3].to_s
=> "[1, 2, 3]"
Ruby 1.8.6
irb(main):001:0> [1,2,3].to_s
=> "123"
Action: Use .join instead
Colon No Longer Valid In When Statements
Rub...
What is the difference between integration and unit tests?
...though.. I'd rather focus more on getting the damn code to work full stop ^_^
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Exact difference between CharSequence and String in java [duplicate]
...tring()
)
I must confess I'm a bit surprised that my compiler javac 1.6.0_33 compiles the + obj using StringBuilder.append(Object) instead of StringBuilder.append(CharSequence). The former probably involves a call to the toString() method of the object, whereas the latter should be possible in a m...
How do RVM and rbenv actually work?
...runs the corresponding command for that version. Here's how:
If the RBENV_VERSION environment variable is set, its value determines the version of Ruby to use.
If the current working directory has an .rbenv-version file, its contents are used to set the RBENV_VERSION environment variable.
If there...
Is it better to call ToList() or ToArray() in LINQ queries?
...; keeps track on whether collection was modified, there is a private field _version in this class which is changed everytime the List<> is updated.)
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How to trace the path in a Breadth-First Search?
...
You should have look at http://en.wikipedia.org/wiki/Breadth-first_search first.
Below is a quick implementation, in which I used a list of list to represent the queue of paths.
# graph is in adjacent list representation
graph = {
'1': ['2', '3', '4'],
'2': ['5', '6'],
...
How to show all privileges from a user in oracle?
...
You can try these below views.
SELECT * FROM USER_SYS_PRIVS;
SELECT * FROM USER_TAB_PRIVS;
SELECT * FROM USER_ROLE_PRIVS;
DBAs and other power users can find the privileges granted to other users with the DBA_ versions of these same views. They are covered in the docume...
How to capture Curl output to a file?
...the filename contains the url
curl http://www.example.com/data.txt -o "file_#1.txt"
# saves to data.txt, the filename extracted from the URL
curl http://www.example.com/data.txt -O
# saves to filename determined by the Content-Disposition header sent by the server.
curl http://www.example.com/da...
What is the difference between ELF files and bin files?
... answered Mar 15 '10 at 5:54
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How to make custom error pages work in ASP.NET MVC 4
...mething like this:
@model System.Web.Mvc.HandleErrorInfo
@{
Layout = "_Layout.cshtml";
ViewBag.Title = "Error";
}
<div class="list-header clearfix">
<span>Error</span>
</div>
<div class="list-sfs-holder">
<div class="alert alert-error">
An...