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使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
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XSD: What is the difference between xs:integer and xs:int?
...g/web/20151117073716/http://www.w3schools.com/schema/schema_dtypes_numeric.asp
For example, XJC (Java) generates Integer for xs:int and BigInteger for xs:integer.
The bottom line: use xs:int if you want to work cross platforms and be sure that your numbers will pass without a problem.
If you want ...
REST vs JSON-RPC? [closed]
... because no service should go undocumented RPC or REST. If it's documented then the developer who uses it should have no problems.
– Agile Jedi
May 22 '15 at 22:35
...
How to make good reproducible pandas examples
...vant that you have Timestamp columns, e.g. you're resampling or something, then be explicit and apply pd.to_datetime to them for good measure**.
df['date'] = pd.to_datetime(df['date']) # this column ought to be date..
** Sometimes this is the issue itself: they were strings.
The Bad:
don't in...
What is the optimal algorithm for the game 2048?
...ermines how "good" a given board position is. The optimization search will then aim to maximize the average score of all possible board positions. The actual score, as shown by the game, is not used to calculate the board score, since it is too heavily weighted in favor of merging tiles (when delaye...
What are some (concrete) use-cases for metaclasses?
...nctions? It's better to be explicit and verbose about your arguments". But then, object-oriented programming is much more powerful once you get it; and so is this, uh... quasi-aspect-oriented programming, I guess. And once you understand metaclasses, they're actually very simple, so why not use them...
Why doesn't Java offer operator overloading?
...you wanted to overwrite the previous value of the object referred to by a, then a member function would have to be invoked.
Complex a, b, c;
// ...
a = b.add(c);
In C++, this expression tells the compiler to create three (3) objects on the stack, perform addition, and copy the resultant value fro...
Is either GET or POST more secure than the other?
...e it. The client can spoof it when sending it back to you. If those matter then yes, keep the sensitive data on the server and don’t let it leave.
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Fastest way to determine if an integer's square root is an integer
...l be square roots of x modulo t/2. (Note that if r is a square root of x, then so is -r. This is true even modulo numbers, but beware, modulo some numbers, things can have even more than 2 square roots; notably, this includes powers of 2.) Because our actual square root is less than 2^32, at that...
What's the difference between setWebViewClient vs. setWebChromeClient?
...ent mWebViewClient;
// Instance of WebChromeClient for handling all chrome functions.
private volatile WebChromeClient mWebChromeClient;
// SOME OTHER SUTFFF.......
/**
* Set the WebViewClient.
* @param client An implementation of WebViewClient.
*/
public void setWebViewClient(WebViewClient cli...