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How to randomly select an item from a list?
...y selects a single item
For reproducibility, you can do:
np.random.seed(123)
np.random.choice(foo) # first call will always return 'c'
For samples of one or more items, returned as an array, pass the size argument:
np.random.choice(foo, 5) # sample with replacement (default)
np.random...
Serialize an object to XML
...
123
I modified mine to return a string rather than use a ref variable like below.
public static s...
How do I erase an element from std::vector by index?
...you use std::next you can do it in one line: vec.erase( next(begin(vec), 123) );
– dani
Oct 5 '16 at 20:36
8
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How do I format a number in Java?
...
From this thread, there are different ways to do this:
double r = 5.1234;
System.out.println(r); // r is 5.1234
int decimalPlaces = 2;
BigDecimal bd = new BigDecimal(r);
// setScale is immutable
bd = bd.setScale(decimalPlaces, BigDecimal.ROUND_HALF_UP);
r = bd.doubleValue();
System.out.pri...
“From View Controller” disappears using UIViewControllerContextTransitioning
...
98
I was having the same problem here – looks like a bug in iOS 8. I've filed a radar.
I used ...
ListCtrl 重绘（Custom Draw） - C/C++ - 清泛网 - 专注C/C++及内核技术
...观编程甚至可以代替很多的古老方法。
以下代码是在WIN98 和VC6 SP2的环境下写的，common controls DLL的版本是5.0。我已经对其在WinNT 4上进行了测试。系统要运行这些代码，它的common controls DLL的版本必须至少是4.71。但随着IE4 的发布...
ValidateRequest=“false” doesn't work in Asp.Net 4
...sing requestValidationMode="2.0" is a good idea?
– fc123
Oct 16 '14 at 16:05
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How do I scroll to an element using JavaScript?
...of Apr-16, it works under Opera and Chrome too.
– lvr123
Apr 18 '16 at 9:05
2
When using this sol...
WebSockets vs. Server-Sent events/EventSource
...ore YouTube, Netflix, Facebook and even MySpace. When XHR came out Windows 98 was the best OS, AOL was the best provider, and JSON didn't even exist. WebSockets replaced XHR almost a decade ago. If you hit snags using WS the thing that caused the snag is also outdated. There is no excuse to lag that...
Using Html.ActionLink to call action on different controller
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