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jQuery removeClass wildcard
...d matching. Optionally add classes: https://gist.github.com/1517285
$( '#foo' ).alterClass( 'foo-* bar-*', 'foobar' )
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How update the _id of one MongoDB Document?
...your document is:
{
"_id":ObjectId("5b5ed345cfbce6787588e480"),
"title": "foo",
"description": "bar"
}
Then your query will be:
db.getCollection('myCollection').aggregate([
{$match:
{_id: ObjectId("5b5ed345cfbce6787588e480")}
}
{$project:
...
Pythonic way to check if a file exists? [duplicate]
...(untested):
import os
def open_if_not_exists(filename):
try:
fd = os.open(filename, os.O_CREAT | os.O_EXCL | os.O_WRONLY)
except OSError, e:
if e.errno == 17:
print e
return None
else:
raise
else:
return os.fdopen(fd, ...
Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
...t with or without -n/-z is suitable for checking a variable.
| 1a 2a 3a 4a 5a 6a | 1b 2b 3b 4b 5b 6b
| [ [" [-n [-n" [-z [-z" | [[ [[" [[-n [[-n" [[-z [[-z"
-----+------------------------------------+------------------------------------
u...
For loop for HTMLCollection elements
...terator to iterate them.
Working demo: http://jsfiddle.net/jfriend00/joy06u4e/.
Second Update for ES6 in Dec 2016
As of Dec 2016, Symbol.iterator support has been built-in to Chrome v54 and Firefox v50 so the code below works by itself. It is not yet built-in for Edge.
var list = document.get...
How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?
...pen() . I need to get a file descriptor from it, to make calls like fsync(fd) on it. What's the function to get a file descriptor from a file pointer?
...
OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...= ObMySQLCallback::on_disconnect;
// 登录逻辑，在libeasy发现listenfd上有读事件时，会将连接接下来，然后给MySQL客户端发送握手包，同时接受客户端发送过来的用户名密码等信息，最后进行服务器端的验证，这几次
//交互过程是不经过l...
How do I 'overwrite', rather than 'merge', a branch on another branch in Git?
...tree} B^{tree} HEAD^{tree}
3859ea064e85b2291d189e798bfa1bff87f51f3e
0389f8f2a3e560b639d82597a7bc5489a4c96d44
0389f8f2a3e560b639d82597a7bc5489a4c96d44
EDIT 2020-07-29:
There seems to be a lot of confusion as to what the difference between -s ours and -X ours (equivalent to -s recursive --strategy-o...
Python, Unicode, and the Windows console
... Japanese and Chinese characters just fine in IDLE by default. Try print('\u4E01'), print('\u6b63')).
– jfs
Jan 13 '17 at 21:14
...
Using Git, show all commits that are in one branch, but not the other(s)
...
Note that git log foo..bar will show the commits between bar's latest and foo's latest, but not other commits missing from further back in time. To see everything in bar but not in foo, you should use @jimmyorr's solution.
...