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What is “lifting” in Scala?
...gt;
scala> res1(-1)
res2: Option[Boolean] = None
scala> res1(1)
res3: Option[Boolean] = Some(false)
Methods
You can "lift" a method invocation into a function. This is called eta-expansion (thanks to Ben James for this). So for example:
scala> def times2(i: Int) = i * 2
times2: (i: In...
How to manually deprecate members
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273
You can use the Available tag, for example :
@available(*, deprecated)
func myFunc() {
// ...
What is a bank conflict? (Doing Cuda/OpenCL programming)
...e serialized (this is a bank conflict). For gt200 gpus there are 16 banks (32banks for fermi), 16 or 32 banks for AMD gpus (57xx or higher: 32, everything below: 16)), which are interleaved with a granuity of 32bit (so byte 0-3 are in bank 1, 4-7 in bank 2, ..., 64-69 in bank 1 and so on). For a bet...
Failed to instantiate module [$injector:unpr] Unknown provider: $routeProvider
...
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How to check version of a CocoaPods framework
...ach Pod installed. If you want to double check that FlurrySDK is using 4.2.3, check that file.
Note: You should not edit this file. It is auto-generated when you run pod install or pod update
share
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Select SQL Server database size
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232
Try this one -
Query:
SELECT
database_name = DB_NAME(database_id)
, log_size_mb = ...
Rails mapping array of hashes onto single hash
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163
You could compose Enumerable#reduce and Hash#merge to accomplish what you want.
input = [{"test...
Difference between EXISTS and IN in SQL?
...ve a static list to pass:
select * from [table]
where [field] in (1, 2, 3)
When you have a table in an in statement it makes more sense to use a join, but mostly it shouldn't matter. The query optimiser should return the same plan either way. In some implementations (mostly older, such as Micro...
Deleting array elements in JavaScript - delete vs splice
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1713
delete will delete the object property, but will not reindex the array or update its length. Thi...
How does IPython's magic %paste work?
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138
You can't copy to IPython directly. This are the steps:
Copy the lines you want to copy into ...