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Package objects
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Normally you would put your package object in a separate file called package.scala in the package that it corresponds to. You can also use the nested package syntax but that is quite unusual.
The main use case for package objects is when you need definitions in various places inside yo...
How do I serialize an object and save it to a file in Android?
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Should there be a call to fos.close() and fis.close() as well?
– IcedDante
Nov 4 '13 at 5:01
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How to set a Fragment tag by code?
...the post on stackoverflow [1]: stackoverflow.com/questions/9363072/android-set-fragment-id
– SME
Jul 26 '12 at 6:04
2
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range over interface{} which stores a slice
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Well I used reflect.ValueOf and then if it is a slice you can call Len() and Index() on the value to get the len of the slice and element at an index. I don't think you will be able to use the range operate to do this.
package main
import "fmt"
import "reflect"
func main() {
data...
What does “Git push non-fast-forward updates were rejected” mean?
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GitHub has a nice section called "Dealing with “non-fast-forward” errors"
This error can be a bit overwhelming at first, do not fear.
Simply put, git cannot make the change on the remote without losing commits, so it refuses the push.
Usua...
How to make a query with group_concat in sql server [duplicate]
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Query:
SELECT
m.maskid
, m.maskname
, m.schoolid
, s.schoolname
, maskdetail = STUFF((
SELECT ',' + md.maskdetail
FROM dbo.maskdetails md
WHERE m.maskid = md.maskid
FOR XML PATH(''), TYPE)....
Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?
...ar to me why there were answers that referenced the Get method - maybe one calls the other?
At any rate, to answer the question...
No. An exception will not be thrown if you access a non-existent key - a null will be returned.
Here is the relevant section from the NameValueCollection.Item propert...
How do I force Postgres to use a particular index?
...on "index hinting" feature found in many databases, PostgreSQL doesn't provide such a feature. This was a conscious decision made by the PostgreSQL team. A good overview of why and what you can do instead can be found here. The reasons are basically that it's a performance hack that tends to cause m...
How to rename items in values() in Django?
... -1 because .values(supports__through_tables) and this hack doesn't (incidentally probably the most obvious use case for wanting to rename the ValuesQuerySet dict keys)
– wim
Aug 21 '14 at 13:12
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Add new methods to a resource controller in Laravel
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How would you pass a parameter like {id}? Currently I've coded my custom method inline in routes.php (like the example here laravel.com/docs/5.1/routing#route-parameters). Ideally I'd like to pass the parameter to run in FooController.
–...