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How do I check in JavaScript if a value exists at a certain array index?
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Conceptually, arrays in JavaScript contain array.length elem>me m>nts, starting with array[0] up until array[array.length - 1]. An array elem>me m>nt with index i is defined to be part of the array if i is between 0 and array.length - 1 inclusive. If i is not in this range it's not in the ar...
Can I use __init__.py to define global variables?
I want to define a constant that should be available in all of the submodules of a package. I've thought that the best place would be in in the __init__.py file of the root package. But I don't know how to do this. Suppose I have a few subpackages and each with several modules. How can I access th...
What should I do if the current ASP.NET session is null?
In my web application, I do som>me m>thing like this to read the session variables:
5 Answers
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Storyboard - refer to ViewController in AppDelegate
...the class files for this ViewController into the project and specify the nam>me m> of the new class in the IB identity inspector. Now how am I going to refer to this ViewController programmatically from the AppDelegate? I've made a variable with the relevant class and turned it into an IBOutlet property,...
How to get a pixel's x,y coordinate color from an image?
Is there any way to check if a selected(x,y) point of a PNG image is transparent?
4 Answers
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How to access param>me m>ters in a RESTful POST m>me m>thod
My POST m>me m>thod looks like this:
1 Answer
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How do I join two SQLite tables in my Android application?
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You need rawQuery m>me m>thod.
Example:
private final String MY_QUERY = "SELECT * FROM table_a a INNER JOIN table_b b ON a.id=b.other_id WHERE b.property_id=?";
db.rawQuery(MY_QUERY, new String[]{String.valueOf(propertyId)});
Use ? bindings in...
How to write a caption under an image?
... flow. <figure> and <figcaption> aren't general-purpose replacem>me m>nts for images with captions. They only apply to figures. If you (for example) have a step-by-step how-to that is composed of paragraphs intermixed with captioned photos, it may be important that the images are presented at...
Using 'starts with' selector on individual class nam>me m>s
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answered Feb 1 '10 at 17:01
Josh StodolaJosh...
Spring Boot - inject map from application.yml
...ies:
import java.util.HashMap;
import java.util.Map;
import org.springfram>me m>work.boot.SpringApplication;
import org.springfram>me m>work.boot.autoconfigure.EnableAutoConfiguration;
import org.springfram>me m>work.boot.context.properties.ConfigurationProperties;
import org.springfram>me m>work.boot.context.propert...