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What's the pythonic way to use getters and setters?
...ected_value. This is so that __init__ uses the property through the public API, ensuring it is "protected".)
And usage:
>>> p1 = Protective(3)
>>> p1.protected_value
3
>>> p1 = Protective(5.0)
>>> p1.protected_value
5
>>> p2 = Protective(-5)
Traceback (...
@selector() in Swift?
... type/memory safety.)
But there are still a number of important ObjC-based APIs that use selectors, including timers and the target/action pattern. Swift provides the Selector type for working with these. (Swift automatically uses this in place of ObjC's SEL type.)
In Swift 2.2 (Xcode 7.3) and later...
Queries vs. Filters
...erefore faster than queries. Have a look here too. Let's say a query is usually something that the users type and pretty much unpredictable, while filters help users narrowing down the search results , for example using facets.
...
What is the most efficient way to deep clone an object in JavaScript?
...
Native deep cloning
It's called "structured cloning", works experimentally in Node 11 and later, and hopefully will land in browsers. See this answer for more details.
Fast cloning with data loss - JSON.parse/stringify
If you do not use Dates, funct...
What is the Swift equivalent to Objective-C's “@synchronized”?
...ty that you have with @synchronized.
– Michael Waterfall
Oct 23 '14 at 16:46
9
With this approach...
App Inventor 2开发简单计算器 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...在点击事件处理程序中调用点击数字过程，并将按钮显示文本作为参数，传递给该过程。如图2-4所示。图2-4 在按钮点击事件中调用点击数字过程以此类推，其他9个按钮的点击事件处理程序也将如法炮制。如图2-5所示。图2-5 所有...
How to make a copy of a file in android?
... out.close();
}
} finally {
in.close();
}
}
On API 19+ you can use Java Automatic Resource Management:
public static void copy(File src, File dst) throws IOException {
try (InputStream in = new FileInputStream(src)) {
try (OutputStream out = new FileOutputStr...
Correct way to pass multiple values for same parameter name in GET request
...or parameters with multiple values.
However, since you are developing the APIs, I suggest you to do what is the easiest for you, since the caller of the API will not have much trouble creating the query string.
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How can you make a custom keyboard in Android?
...
First of all you will need a keyboard.xml file which will be placed in the res/xml folder (if the folder does not exist, created it).
<?xml version="1.0" encoding="utf-8"?>
<Keyboard xmlns:android="http://schemas.android.com...
Entity Framework - Invalid Column Name '*_ID"
...ne for you to try to make the connection between the tables. This specifically happens with ICollection and has driven me "batty" trying to figure it out.
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