大约有 45,000 项符合查询结果（耗时：0.0781秒） [XML]
Slide right to left?
...
The only trouble is that if there is content inside, it "squashes" it horizontally, causing controls to move about/resize/wrap etc. Is there a good solution for that?
– Neil Barnwell
May 15 '17 at 22:51
...
Rails: select unique values from a column
...ts. Not plain ratings. And from uniq's point of view, they are completely different. You can use this:
Model.select(:rating).map(&:rating).uniq
or this (most efficient)
Model.uniq.pluck(:rating)
# rails 5+
Model.distinct.pluck(:rating)
Update
Apparently, as of rails 5.0.0.1, it works onl...
How to emulate GPS location in the Android Emulator?
...t 5554
You then can use the geo command to set a latitude, longitude and if needed altitude on the device that is passed to all programs using the gps location provider. See the link above for further instructions.
The specific command to run in the console is
geo fix <longitude value> &l...
Understanding the ngRepeat 'track by' expression
I'm having difficulties understanding how the track by expression of ng-repeat in angularjs works. The documentation is very scarce: http://docs.angularjs.org/api/ng/directive/ngRepeat
...
Can I use break to exit multiple nested 'for' loops?
...a flag value that you use. At the end of each loop check the flag value. If it is set to true, then you can break out of that iteration.
share
|
improve this answer
|
follo...
Split a vector into chunks in R
...e here. Although the OP's question was to split into chunks of equal size, if the vector happens not to be a multiple of the divisor, the last chink will have a different size than chunk. To split into n-chunks I used max <- length(d)%/%n. I used this with a vector of 31 strings and obtained a li...
jQuery .hasClass() vs .is()
...only checks for a class being set or not.
Hence, hasClass should be faster if performance at any level is your priority.
share
|
improve this answer
|
follow
|...
In AngularJS, what's the difference between ng-pristine and ng-dirty?
What are the differences between ng-pristine and ng-dirty ? It seems you can have both to be true :
5 Answers
...
How to restart Jenkins manually?
...enkins/war/WEB-INF/jenkins-cli.jar -s http://localhost:8080/ safe-restart (if installed by rpm or deb, otherwise adjust accordingly).
– clacke
Nov 14 '13 at 3:28
13
...
Suppress warning messages using mysql from within Terminal, but password written in bash script
...
If your MySQL client/server version is a 5.6.x a way to avoid the WARNING message are using the mysql_config_editor tools:
mysql_config_editor set --login-path=local --host=localhost --user=username --password
Then you can...