大约有 30,000 项符合查询结果（耗时：0.0483秒） [XML]
How to list running screen sessions?
...ll want to list all screens then put the following
script in your path and call it screen or whatever you like:
#!/bin/bash
if [[ "$1" != "-ls-all" ]]; then
exec /usr/bin/screen "$@"
else
shopt -s nullglob
screens=(/var/run/screen/S-*/*)
if (( ${#screens[@]} == 0 )); then
ec...
Why were pandas merges in python faster than data.table merges in R in 2012?
...vels) is large: 10,000.
Does Rprof() reveal most of the time spent in the call sortedmatch(levels(i[[lc]]), levels(x[[rc]])? This isn't really the join itself (the algorithm), but a preliminary step.
Recent efforts have gone into allowing character columns in keys, which should resolve that issue...
How do I find a “gap” in running counter with SQL?
...
In MySQL and PostgreSQL:
SELECT id + 1
FROM mytable mo
WHERE NOT EXISTS
(
SELECT NULL
FROM mytable mi
WHERE mi.id = mo.id + 1
)
ORDER BY
id
LIMIT 1
In SQL Server:
SELECT TOP 1
id + 1
FR...
VIM ctrlp.vim plugin: how to rescan files?
...a recently updated file, and hit F5 to refresh right then. It will automatically show you the match if the file was just added to the ctrl-p cache.
share
|
improve this answer
|
...
How to detect Safari, Chrome, IE, Firefox and Opera browser?
...lt to prevent it from needing to work it out the next time the function is called.
Does MongoDB's $in clause guarantee order
...y have two options.
So let's say that you were matching on the values of _id in your documents with an array that is going to be passed in to the $in as [ 4, 2, 8 ].
Approach using Aggregate
var list = [ 4, 2, 8 ];
db.collection.aggregate([
// Match the selected documents by "_id"
{...
Reading file contents on the client-side in javascript in various browsers
...
shouldn't the event handlers be attached before calling readAsText ?
– goofballLogic
Jan 19 '18 at 14:19
|
show 4...
REST API Best practices: args in query string vs in request body
...
I'll assume you are talking about POST/PUT requests. Semantically the request body should contain the data you are posting or patching.
The query string, as part of the URL (a URI), it's there to identify which resource you are posting or patching.
You asked for a best practices, fo...
Angular JS: What is the need of the directive’s link function when we already had directive’s contro
... Great explanation. Would like to mention that the controller gets called before link function.
– jsbisht
Aug 3 '15 at 15:45
39
...
Difference between exit(0) and exit(1) in Python
...r code means a successful exit.
This is useful for other programs, shell, caller etc. to know what happened with your program and proceed accordingly.
share
|
improve this answer
|
...