大约有 30,000 项符合查询结果（耗时：0.0375秒） [XML]
Force unmount of NFS-mounted directory [closed]
... Interesting. At my side (after NFS-Server vanished): umount calls umount.nfs, hangs forever (regardless of option). umount.nfs4 /mnt -f takes quite long, but completes. umount.nfs4 /mnt -l completes immediately (perhaps because it does not wait for processes).
–...
Pandas dataframe get first row of each group
...
>>> df.groupby('id').first()
value
id
1 first
2 first
3 first
4 second
5 first
6 first
7 fourth
If you need id as column:
>>> df.groupby('id').first().reset_index()
id value
0 1 first
1 ...
Adding parameter to ng-click function inside ng-repeat doesn't seem to work
...
Instead of
<button ng-click="removeTask({{task.id}})">remove</button>
do this:
<button ng-click="removeTask(task.id)">remove</button>
Please see this fiddle:
http://jsfiddle.net/JSWorld/Hp4W7/34/
...
Alternate output format for psql
...on Ubuntu. I have a table with columns c1 through cN . The columns are wide enough that selecting all columns causes a row of query results to wrap multiple times. Consequently, the output is hard to read.
...
Get real path from URI, Android KitKat new storage access framework [duplicate]
Before the new gallery access in Android 4.4 (KitKat) I got my real path on the SD card with this method:
9 Answers
...
How to get form field's id in Django?
Is there any way to get the id of a field in a template?
4 Answers
4
...
MySQL: How to copy rows, but change a few fields?
...
INSERT INTO Table
( Event_ID
, col2
...
)
SELECT "155"
, col2
...
FROM Table WHERE Event_ID = "120"
Here, the col2, ... represent the remaining columns (the ones other than Event_ID) in ...
How do you use Mongoose without defining a schema?
... is true to an extent, however there is a workaround that I found. You can call the toJSON() method on the document that you retrieved which will then allow you to use your regular dot notation like doc.someProp. Sorry to reply on such an old answer. Just wanted to add this in case someone comes acr...
Cast int to varchar
I have below query and need to cast id to varchar
8 Answers
8
...
How to use concerns in Rails 4
...owerful concept. It has to do with code reuse as in the example below. Basically, the idea is to extract common and / or context specific chunks of code in order to clean up the models and avoid them getting too fat and messy.
As an example, I'll put one well known pattern, the taggable pattern:
#...