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Providing a default value for an Optional in Swift?
...he idiom for dealing with optionals in Swift seems excessively verbose, if all you want to do is provide a default value in the case where it's nil:
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Start service in Android
I want to call a service when a certain activity starts. So, here's the Service class:
5 Answers
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What Product Flavor does Android Studio build by default in build.gradle?
...e , we notice that Android Studio builds the first one specified alphabetically. Is there a way to tell Android Studio to build and test only a specific product flavor during development?
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Java equivalent of C#'s verbatim strings with @
...d thanks. the fact that its a 'filename' in my case in kind of irrelevant. All my code is doing is taking a string (or trying to) and passing it on. I don't actually do anything with it other than pass it on to a web service. I was testing the response from a c# WCF service being called from Java. A...
What is the template binding vs binding?
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Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.
– Bhargav Rao♦
Mar 11 '16 at 16:25
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Please explain about insertable=false and updatable=false in reference to the JPA @Column annotation
...e is useful when you need to map a field more than once in an entity, typically:
when using a composite key
when using a shared primary key
when using cascaded primary keys
This is IMO not a semantical thing, but definitely a technical one.
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How to document class attributes in Python? [closed]
...y has a specific meaning in python. What you're talking about is what we call class attributes. Since they are always acted upon through their class, I find that it makes sense to document them within the class' doc string. Something like this:
class Albatross(object):
"""A bird with a fligh...
How to go up a level in the src path of a URL in HTML?
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Here is all you need to know about relative file paths:
Starting with / returns to the root directory and starts there
Starting with ../ moves one directory backward and starts there
Starting with ../../ moves two directories backw...
What is the session's “secret” option?
...o compute the hash. Without the string, access to the session would essentially be "denied". Take a look at the connect docs, that should help a little bit.
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Methods inside enum in C#
...her option is to use the Enumeration Class created by Jimmy Bogard.
Basically, you must create a class that inherits from his Enumeration. Example:
public class EmployeeType : Enumeration
{
public static readonly EmployeeType Manager
= new EmployeeType(0, "Manager");
public stati...