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How to wait for several Futures?
...urrently
f3 <- func3.concurrently
} yield for {
v1 <- f1
v2 <- f2
v3 <- f3
} yield (v1,v2,v3)
}.future
f.onFailure { case t => println("future failed $t") }
In the example above, f1,f2 and f3 will run concurrently and if any fail in any order the future of the tuple...
Can you do greater than comparison on a date in a Rails 3 search?
...
Rails 6.1 added a new 'syntax' for comparison operators in where conditions, for example:
Post.where('id >': 9)
Post.where('id >=': 9)
Post.where('id <': 3)
Post.where('id <=': 3)
So your query can be rewritten as foll...
How do I compile a Visual Studio project from the command-line?
...many version of the msbuild.exe.
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\msbuild.exe
C:\Windows\Microsoft.NET\Framework64\v3.5\msbuild.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\msbuild.exe
C:\Windows\Microsoft.N...
How do I reverse a C++ vector?
...e vector in-place. You could create a new vector with std::vector<T> v2( v1.rbegin(), v1.rend() ); v2.swap(v1); which would effectively use your solution. I don't see how it is more elegant or advantageous in any way to using std::reverse though.
– CashCow
...
What is the purpose of shuffling and sorting phase in the reducer in Map Reduce Programming?
... to the reducer so they are reduced together. There is no point sending K1,V2 and K1,V4 to different reducers as they need to be together in order to be reduced.
Tried explaining it as simply as possible
share
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How are cookies passed in the HTTP protocol?
...8
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8,ru;q=0.6
Cookie: name=F
...
如何抓住痛点做出让用户尖叫的产品 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...察觉的情况下，体验到产品的优化改进。比如在微信（iOS版，Android版没有试用，不是很确定，理论上体验是会一致的）中有这样一个功能，当你做了手机屏幕截图的操作后，打开微信的任一聊天窗口，选择“+”号发送其他内容...
Will using goto leak variables?
...l:
return 0;
}
// error: label 'lol' used but not defined
[n3290: 6.1/1]: [..] The scope of a label is the function in which
it appears. [..]
2. Object initialisation
You can't jump across object initialisation:
int main() {
goto lol;
int x = 0;
lol:
return 0;
}
// error: ...
Variable number of arguments in C++?
...:vector<int> v1( arr1, arr1+4 ) ;
std::vector<std::string> v2( arr2, arr2+2 ) ;
func1( v1 ) ;
func1( v2 ) ;
}
and the alternative for variadic templates would be variadic functions although they are not type-safe and in general error prone and can be unsafe to use but the ...
App Inventor 2 接入百度网盘API · App Inventor 2 中文网
...注意：手机的话，必须将 display=mobile 加上，以展示手机版的授权画面（电脑版极有可能在手机上不能完美展示）。
access_token=[access_token] 有效期：根据文档，有效期大概30天
拿 access_token 的逻辑如下：
3、获取文件列表，...