大约有 41,500 项符合查询结果（耗时：0.0470秒） [XML]
How to set timeout on python's socket recv method?
...the socket no non-blocking? I don't think that matters to the select call (and it blocks until a descriptor can be read or the timeout expires in this case) and the recv() won't block if the select is satisfied. I tried it using recvfrom() and it seems to work correctly without setblocking(0).
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Using bitwise OR 0 to floor a number
...in some cases?
Clarity is an obvious one, since we had to figure it out, and well,
I'm writting this question.
Will not pass jsLint.
32-bit signed integers only
Odd Comparative behavior: Math.floor(NaN) === NaN, while (NaN | 0) === 0
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Prevent unit tests but allow integration tests in Maven
...e a Maven build in which I use the SureFire plugin to run some unit tests, and the FailSafe plugin to run some integration tests. I would like a way to run just the FailSafe plugin's tests.
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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
I use
Rails 3.0.20 and
ruby 1.8.7 (2011-06-30 patchlevel 352)
4 Answers
4
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Does Notepad++ show all hidden characters?
... *Show All Characters`
or
Menu View → Show Symbol → Show White Space and TAB
(Thanks to bers' comment and bkaid's answers below for these updated locations.)
On older versions you can look for:
Menu View → Show all characters
or
Menu View → Show White Space and TAB
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C++ catching all exceptions
...nt to add separate catch clauses for the various exceptions you can catch, and only catch everything at the bottom to record an unexpected exception. E.g.:
try{
// ...
} catch (const std::exception& ex) {
// ...
} catch (const std::string& ex) {
// ...
} catch (...) {
// .....
Rails: Using build with a has_one association in rails
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The build method signature is different for has_one and has_many associations.
class User < ActiveRecord::Base
has_one :profile
has_many :messages
end
The build syntax for has_many association:
user.messages.build
The build syntax for has_one association:
user.bu...
Is there a simple, elegant way to define singletons? [duplicate]
...
I don't really see the need, as a module with functions (and not a class) would serve well as a singleton. All its variables would be bound to the module, which could not be instantiated repeatedly anyway.
If you do wish to use a class, there is no way of creating private classes...
How can I strip first X characters from string using sed?
... a small industrial box. I have a variable containing the text pid: 1234 and I want to strip first X characters from the line, so only 1234 stays. I have more variables I need to "clean", so I need to cut away X first characters and ${string:5} doesn't work for some reason in my system.
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Swift double to string
...ntrolled with the printf formatting options, see: String Format Specifiers and printf(3).
– zaph
Mar 21 '15 at 13:14
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