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Rails: fields_for with index?
Is there a method (or way to pull off similar functionality) to do a fields_for_with_index ?
9 Answers
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R cannot be resolved - Android error
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After tracking down this problem as well, I found this note in the Android documentation:
http://source.android.com/source/using-eclipse.html
*Note: Eclipse sometimes likes to add an "import android.R" statement at the
top of your files tha...
How do I change the language of moment.js?
I am trying to change the language of the date which is being set by moment.js. The default one is English, but I want to set the German language. These is what I tried:
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Return Boolean Value on SQL Select Statement
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What you have there will return no row at all if the user doesn't exist. Here's what you need:
SELECT CASE WHEN EXISTS (
SELECT *
FROM [User]
WHERE UserID = 20070022
)
THEN CAST(1 AS BIT)
ELSE CAST(0 AS BIT) END
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Regular Expression for alphanumeric and underscores
...ins only those characters (or an empty string), try
"^[a-zA-Z0-9_]*$"
This works for .NET regular expressions, and probably a lot of other languages as well.
Breaking it down:
^ : start of string
[ : beginning of character group
a-z : any lowercase letter
A-Z : any uppercase letter
0-9 : any di...
What Computer Science concepts should I know? [closed]
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Take a look at this blog post by Steve Yegge (formerly of Amazon, now at Google):
The Five Essential Phone Screen Questions
It goes into some detail about the the five most important concepts that developers should be required to know:
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How to declare a variable in MySQL?
... initialize a variable using SET or SELECT statement:
SET @start = 1, @finish = 10;
or
SELECT @start := 1, @finish := 10;
SELECT * FROM places WHERE place BETWEEN @start AND @finish;
User variables can be assigned a value from a limited set of data
types: integer, decimal, floating-point...
Writing to an Excel spreadsheet
...o write to a .csv file (never used CSV and don't really understand what it is).
12 Answers
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Where is PHP.ini in Mac OS X Lion? Thought it was in /usr/local/php5/lib
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You should find it in /private/etc if it exists, otherwise:
sudo cp /private/etc/php.ini.default /private/etc/php.ini
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How to see JavaDoc in IntelliJ IDEA? [duplicate]
...ouse over a method, Eclipse shows javadoc info. I think the way to show it is to use a shortcut - command + J , but when I click it, I get something wrong as on the screen shot below. Please advise me on how I can quickly get javadoc information. I need to at least know what type a method returns.
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