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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...
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.
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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...
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 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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store and retrieve a class object in shared preference
In Android can we store an object of a class in shared preference and retrieve the object later?
13 Answers
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How do you set EditText to only accept numeric values in Android?
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Add android:inputType="number" as an XML attribute.
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Class with Object as a parameter
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The Table class is extending a class called object. It's not an argument. The reason you may want to extend object explicitly is it turns the class into a new-style class. If you don't explicitly specify it extends object, until Python 3, it will default to bein...
How big is too big for a PostgreSQL table?
...pment team has already run into a bit of a debate about the design, specifically the database.
2 Answers
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