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How to check if all elements of a list matches a condition?
...a generator expression where appropriate):
>>> [x for x in items if x[2] == 0]
[[1, 2, 0], [1, 2, 0]]
If you want to check at least one element is 0, the better option is to use any() which is more readable:
>>> any(flag == 0 for (_, _, flag) in items)
True
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搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
... but that basic process is:
get maxLocalOpOrdinal from each server.
if a majority of servers are not up (from this server’s POV), remain in Secondary mode and stop.
if the last op time seems very old, stop and await human intervention.
else, using a consensus protocol, pick the serv...
Can I inject a service into a directive in AngularJS?
...t service to get whatever service you like. I find that useful if I don't know the service name ahead of time but know the service interface. For example a directive that will plug a table into an ngResource end point or a generic delete-record button which interacts with any api end point. You don...
Is Dvorak typing appropriate for programming? [closed]
... Dvorak already has the huge con that the rest of the world uses qwerty, now if we start using modifications of dvorak too.. It's even worse! :)
– Thomas Bonini
Dec 18 '09 at 20:49
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What's the algorithm to calculate aspect ratio?
...integer solution like 16:9 rather than a float:1 solution like 1.77778:1.
If so, what you need to do is find the greatest common divisor (GCD) and divide both values by that. The GCD is the highest number that evenly divides both numbers. So the GCD for 6 and 10 is 2, the GCD for 44 and 99 is 11.
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MFC的多国语言界面的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
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SetThreadLocale(MAKELCID(MAKELANGID(LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED), SORT_DEFAULT));
设置线程语言为“英语（美国）”的代码如下：
SetThreadLocale(MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT));
设置线程语言要在对话框创建之前...
Generating random numbers in Objective-C
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You should use the arc4random_uniform() function. It uses a superior algorithm to rand. You don't even need to set a seed.
#include <stdlib.h>
// ...
// ...
int r = arc4random_uniform(74);
The arc4random man page:
NAME
arc4random, arc4random...
Stop all active ajax requests in jQuery
...uld use an array keeping track of all pending ajax requests and abort them if necessary.
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About .bash_profile, .bashrc, and where should alias be written in? [duplicate]
...!), shell options with set and shopt, etc. For an example, see: My .bashrc
Now, as part of UNIX peculiarity, a login-shell does NOT execute ~/.bashrc but only ~/.profile or ~/.bash_profile, so you should source that one manually from the latter. You'll see me do that in my ~/.profile too: source ~/...
What is Func, how and when is it used
...e to leverage the same code representing a pattern (with Select) with two different functions (p => p.Name and p => p.Age).
The alternative would be to write a different version of Select every time you wanted to scan a sequence for a different kind of value. So to achieve the same effect as ...