大约有 8,000 项符合查询结果（耗时：0.0257秒） [XML]
Check if a method exists
...j respondsToSelector:@selector(methodName:withEtc:)]) {
[obj methodName:123 withEtc:456];
}
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What would be C++ limitations compared C language? [closed]
...working in. (In some cases this is possible with a few extern "C" wrapper functions, depending on how template/inline a C++ library is.)
Taking the first C file in a project I'm working on, this is what happens if you just swap gcc std=c99 for g++:
sandiego:$ g++ -g -O1 -pedantic -mfpmath=sse -D...
What is WCF RIA services?
I hate MSDN's site for WCF RIA services. It does not say what it is, it only says what it does. It says what it can achieve but does not say why I need it.
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How can I ask the Selenium-WebDriver to wait for few seconds in Java?
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123
Well, there are two types of wait: explicit and implicit wait.
The idea of explicit wait is
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Array versus List: When to use which?
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123
Really just answering to add a link which I'm surprised hasn't been mentioned yet: Eric's Lipp...
WebSockets vs. Server-Sent events/EventSource
...h Server-Sent Events. But I don't know.
That said, WebSockets are tons of fun. I have a little web game that uses websockets (via Socket.IO) (http://minibman.com)
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Format decimal for percentage values?
...complete example:
using System.Globalization;
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decimal myValue = -0.123m;
NumberFormatInfo percentageFormat = new NumberFormatInfo { PercentPositivePattern = 1, PercentNegativePattern = 1 };
string formattedValue = myValue.ToString("P2", percentageFormat); // "-12.30%" (in en-us)
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How many bytes does one Unicode character take?
... when it comes to writing strlen(), substr() and other string manipulation functions on UTF8 arrays. This kind of work will be never complete and always buggy.
– Nulik
Sep 26 '16 at 16:15
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Nginx 403 error: directory index of [folder] is forbidden
I have 3 domain names and am trying to host all 3 sites on one server (a Digital Ocean droplet) using Nginx.
19 Answers
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How to get an enum which is created in attrs.xml in code
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Let me add a solution written in kotlin. Add inline extension function:
inline fun <reified T : Enum<T>> TypedArray.getEnum(index: Int, default: T) =
getInt(index, -1).let { if (it >= 0) enumValues<T>()[it] else default
}
Now getting enum is simple:
val a: ...