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How do I build a numpy array from a generator?
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Using empty is a bit faster. Since you are going to initialize the values any way, no need to do this twice.
– Kaushik Ghose
Mar 24 '15 at 11:40
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If string is empty then return some default value
...ake extra work even if address is not empty. Maybe you could update that a bit (sorry about confusing one-liner, trying to keep it short):
class String
def or what = ""
self.strip.empty? ? block_given? ? yield : what : self
end
end
@user.address.or "We don't know user's address"
@user.addr...
Toggle Checkboxes on/off
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I know this is old but the question was a bit ambiguous in that toggle may mean each checkbox should toggle its state, whatever that is. If you have 3 checked and 2 unchecked, then toggling would make the first 3 unchecked and the last 2 checked.
For that, none of ...
Is it possible to get the iOS 5.1 SDK for Xcode 4.2 on Snow Leopard?
.../Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs (which is a bit deeper than your post suggests - complicated hierarchy Apple's ended up with isn't it?)
– Richard Groves
Mar 13 '12 at 11:30
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How to handle Objective-C protocols that contain properties?
...need, the underlying ivars will be created for you. If you're targeting 32-bit x86, you'll get the compiler error mentioned, because you're targeting the legacy runtime.
– Jeffrey Harris
Aug 4 '11 at 21:51
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How to filter by IP address in Wireshark?
...IDR) notation.
... the number after the slash represents the number of bits used to represent the network.
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What is the leading LINQ for JavaScript library? [closed]
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@Tom - I tend to be a bit wary of libraries that attempt to simulate the experience of using language X inside language Y if there is already a good way of doing the same thing in language Y. I think it's better to learn the "idioms" of language Y...
OAuth with Verification in .NET
... = RE.Regex.Replace(snip,"(?s)[^0-9]*([0-9]+).*", "$1").Trim();
That's a bit of HTML screen scraping.
After grabbing the pin, you don't need the web browser any more, so:
webBrowser1.Visible = false; // all done with the web UI
...and you might want to call Dispose() on it as well.
The n...
mysql: see all open connections to a given database?
...very second.
– chanux
Apr 18 '14 at 10:39
5
if you need to authenticate mysqladmin --user=[USERNA...
BLE（二）信道&数据包&协议栈格式 - 创客硬件开发 - 清泛IT社区，...
...广播报文接入地址为：0x8E89BED6，数据报文接入地址为：32bits随机数PDU
广播报文（见协议BLUETOOTH SPECIFICATION Version 4.0 [Vol 6] Part B 2.3）
PDU Type：有效载荷内容的类型，通过这一字段确定该数据包是一个”通告“还是”扫描请求“...