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How do I run IDEA IntelliJ on Mac OS X with JDK 7?
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For those who still getting error message that Java 6 must be installed. There are two problems with that:
Mac OS wants jdk 1.6 to be installed whenever application Info.plist file contains Java section
Java launcher shipped with IntelliJ also wants j...
Javascript reduce on array of objects
..., you get the benefit of telling the compiler the initial and it can catch errors if you're doing it wrong. If you don't set the initial value, in many situations it might not be able to guess and you could end up with creepy runtime errors.
3 - Respect the Functors
-- JavaScript shines best when it...
SQL query return data from multiple tables
...we need and use a join that correctly identifies what columns to join on.
ERROR 1052 (23000): Column 'ID' in field list is ambiguous
Oh noes! An error in our first query! Yes, and it is a plum. You see, the query has indeed got the right columns, but some of them exist in both tables, so the data...
Shorter syntax for casting from a List to a List?
...w List<X>();
ListOf<Y> ys = (List<Y>)listOfX; // Compile error: Cannot implicitly cast X to Y
is not possible is because the List<T> is invariant in the Type T and thus it doesn't matter whether X derives from Y) - this is because List<T> is defined as:
public class ...
How To Create Table with Identity Column
...ol probably doesn't have, a "use simpler syntax if possible" option. Least error prone, for OP's specific situation, would be to edit the one line in the generated DDL, and not try to write it from scratch using simplest syntax. Also the example you gave does not assign a name to the PK constraint a...
How to ignore files/directories in TFS for avoiding them to go to central source repository?
...period) but directly trying to name it .nuget may not work (you may get an error or it may change the name, depending on your version of Windows).
Or name the directory nuget, and open the parent directory in command line prompt. type. ren nuget .nuget
Inside of that folder, create a NuGet.config fi...
Expand/collapse section in UITableView in iOS
...t as soon as i had more, i get the "invalid update invalid number of rows" error. i know this solution is older, but will this only work for one section? if we have more than one section, will we need to add the code that actually adds/deletes the rows??
– skinsfan00atg
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Struct like objects in Java
...rning polar coordinates from an (x, y) object - consider ACCUMULATIVE math errors, as changes to individual components of polar coord are converted back to (x, y).
– ToolmakerSteve
Jun 17 '14 at 22:29
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Querying DynamoDB by date
...ain the AWSDynamoDBKeySchemaElement 'createdAt' of type range and I got an error that said Error Domain=com.amazonaws.AWSDynamoDBErrorDomain Code=0 "(null)" UserInfo={__type=com.amazon.coral.validate#ValidationException, message=Both the Hash Key and the Range Key element in the KeySchema have the ...
How to override to_json in Rails?
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You are getting ArgumentError: wrong number of arguments (1 for 0) because to_json needs to be overridden with one parameter, the options hash.
def to_json(options)
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end
Longer explanation of to_json, as_json, and rendering:
In ActiveSupp...