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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...
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...
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 ...
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
...
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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How to override to_json in Rails?
...
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)
...
end
Longer explanation of to_json, as_json, and rendering:
In ActiveSupp...
Can I have multiple primary keys in a single table?
...s auto-incremented. This will work only in MyISAM. InnoDB will generate an error "ERROR 1075 (42000): Incorrect table definition; there can be only one auto column and it must be defined as a key".
DROP TABLE IF EXISTS `test`.`animals`;
CREATE TABLE `test`.`animals` (
`grp` char(30) NOT NULL,
...
Entity Framework is Too Slow. What are my options? [closed]
...ved a LOT of time in other simpler cases, with less code and less room for error and the queries are compiler verified and match the database. Less code is easier maintenance and less room for errors.
– JulianR
Dec 29 '11 at 18:11
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What's the dSYM and how to use it? (iOS SDK)
... 0x00000001045a0e70 BLEConnection.peripheral(_:didUpdateValueFor:error:) + 69232 (BLEConnection.swift:293)
10 F49088168M 0x00000001045a0f4c @objc BLEConnection.peripheral(_:didUpdateValueFor:error:) + 69452 (<compiler-generated>:0)
By default dSYM is generated ...