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How to have a transparent ImageButton: Android
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Try using null for the background ...
android:background="@null"
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NSString tokenize in Objective-C
...red Nov 3 '08 at 21:10
Adam AlexanderAdam Alexander
14.9k55 gold badges3838 silver badges4141 bronze badges
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Show spinner GIF during an $http request in AngularJS?
...doing this be using the ng-class directive instead of using JQuery to show and hide elements?
– James Heald
Jan 11 '16 at 16:01
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Defining a function with multiple implicit arguments in Scala
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They must all go in one parameter list, and this list must be the last one.
def myfun(arg:String)(implicit p1: String, p2:Int)={}
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Using reflect, how do you set the value of a struct field?
...ction is to see how the core Go developers use it. For example, the Go fmt and json packages. The package documentation has links to the source code files under the heading Package files.
The Go json package marshals and unmarshals JSON from and to Go structures.
Here's a step-by-step example wh...
Using generic std::function objects with member functions in one class
... doesn't take any arguments (<void(void)>), you must bind the first (and the only) argument.
std::function<void(void)> f = std::bind(&Foo::doSomething, this);
If you want to bind a function with parameters, you need to specify placeholders:
using namespace std::placeholders;
std:...
How to update attributes without validation
I've got a model with its validations, and I found out that I can't update an attribute without validating the object before.
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How do I trim whitespace?
Is there a Python function that will trim whitespace (spaces and tabs) from a string?
15 Answers
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How to add a ScrollBar to a Stackpanel
...ewer around it, the entire content doesn't show up. I tried setting Height and Width to Auto, but no luck. Why should only a limited portion show?
– Shamim Hafiz
Jun 6 '11 at 9:57
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Check if a table exists in Rails
...came explicit regarding tables/views, collectively data sources.
# Tables and views
ActiveRecord::Base.connection.data_sources
ActiveRecord::Base.connection.data_source_exists? 'kittens'
# Tables
ActiveRecord::Base.connection.tables
ActiveRecord::Base.connection.table_exists? 'kittens'
# Views
Ac...