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What is the difference between tree depth and height?
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691
I learned that depth and height are properties of a node:
The depth of a node is the number of...
Why should I use var instead of a type? [duplicate]
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110
It's really just a coding style. The compiler generates the exact same for both variants.
See...
How to validate a url in Python? (Malformed or not)
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10 Answers
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Convert python datetime to epoch with strftime
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415
If you want to convert a python datetime to seconds since epoch you could do it explicitly:
&g...
Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...xtends Redis
{
const POSITION_FIRST = 0;
const POSITION_LAST = -1;
public function zPop($zset)
{
return $this->zsetPop($zset, self::POSITION_FIRST);
}
public function zRevPop($zset)
{
return $this->zsetPop($zset, self::POSITION_LAST);
}
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Using git to get just the latest revision
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Use git clone with the --depth option set to 1 to create a shallow clone with a history truncated to the latest commit.
For example:
git clone --depth 1 https://github.com/user/repo.git
To also initialize and update any nested submodules, also pass --recurse-submodules...
Best way to store date/time in mongodb
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201
The best way is to store native JavaScript Date objects, which map onto BSON native Date objects...
On Duplicate Key Update same as insert
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Alternatively, you can use:
INSERT INTO table (id,a,b,c,d,e,f,g)
VALUES (1,2,3,4,5,6,7,8)
ON DUPLICATE KEY
UPDATE a=a, b=b, c=c, d=d, e=e, f=f, g=g;
To get the id from LAST_INSERT_ID; you need to specify the backend app you're using for the same.
For LuaSQL, a conn:getlastautoid() fetches ...
Capistrano - clean up old releases
...t's intended purpose? Is there another way to cleanup old releases to just 1 previous deploy?
4 Answers
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How do you use $sce.trustAsHtml(string) to replicate ng-bind-html-unsafe in Angular 1.2+
ng-bind-html-unsafe was removed in Angular 1.2
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