大约有 47,000 项符合查询结果（耗时：0.0668秒） [XML]
How to change default timezone for Active Record in Rails?
In my application.rb I came across the following comment
10 Answers
10
...
In a storyboard, how do I make a custom cell for use with multiple controllers?
I'm trying to use storyboards in an app I'm working on. In the app there are Lists and Users and each contains a collection of the other (members of a list, lists owned by a user). So, accordingly, I have ListCell and UserCell classes. The goal is to have those be re-usable throughout the ap...
Is it possible to disable the network in iOS Simulator?
I am trying to debug some inconsistent behaviour I am seeing in an application that gets its primary data from the internet. I don't see the issues in the simulator, just on the device, so I'd like to reproduce the network and connectivity environment in the simulator.
...
private final static attribute vs private final attribute
...
A static variable stays in the memory for the entire lifetime of the application, and is initialised during class loading. A non-static variable is being initialised each time you construct a new object. It's generally better to use:
private static final int NUMBER = 10;
Why? This reduces t...
Do fragments really need an empty constructor?
I have a Fragment with a constructor that takes multiple arguments. My app worked fine during development, but in production my users sometimes see this crash:
...
Design by contract using assertions or exceptions? [closed]
...
Personally I prefer asserts for design by contract approaches. Exceptions are defensive and are doing the argument checking inside the function. Also, dbc preconditions don't say "I won't work if you use values out of the working range" but "I won't guarantee to provide the r...
Error to use a section registered as allowDefinition='MachineToApplication' beyond application level
...and I see a lot of posts telling me to configure the /portal/ folder as an application in IIS (which I have), and more posts telling me I have nested web.configs (but none of the postings offer guidance toward a solution).
...
Business logic in MVC [closed]
...t even clearer.) The M is everything else: all the data and logic of your application. You can segregate data and business logic within this layer, and you can call the data portion of this layer your "model", but that's not what the "M" in "MVC" is referring to.
– Mud
...
What's the difference between compiled and interpreted language?
...e, as is done in Lua, Python, Ruby, Smalltalk, and many other systems (the approach was popularized in the 1970s by the UCSD P-system and UCSD Pascal)
A tree-like representation of the original program, such as an abstract-syntax tree, as is done for many prototype or educational interpreters
A toke...
What are best practices for multi-language database design? [closed]
...namic, please help me to understand what is the best choose for enterprise applications
5 Answers
...