大约有 20,000 项符合查询结果（耗时：0.0569秒） [XML]
Bash script processing limited number of commands in parallel
...
Use the wait built-in:
process1 &
process2 &
process3 &
process4 &
wait
process5 &
process6 &
process7 &
process8 &
wait
For the above example, 4 processes process1 ... process4 would be sta...
AngularJS - difference between pristine/dirty and touched/untouched
AngularJS Developer Guide - Forms tell there are many styles and directives regarding forms and fields. For each one, a CSS class:
...
return query based on date
...
You probably want to make a range query, for example, all items created after a given date:
db.gpsdatas.find({"createdAt" : { $gte : new ISODate("2012-01-12T20:15:31Z") }});
I'm using $gte (greater than or equals), because t...
How to check whether a file or directory exists?
I want to check the existence of file ./conf/app.ini in my Go code,
but I can't find a good way to do that.
5 Answers
...
Git clone without .git directory
... when doing a clone, say don't clone the .git directory? If not, how about a flag to delete the .git directory after the clone?
...
Install specific git commit with pip
I'm developing a django app and I'm using pip to manage my requirements. How can I do to install a specific git's commit?
4...
Command to change the default home directory of a user
I would like to know whether there is any simple shell command to change the user home directory in Linux/Unix (one similar to chsh which changes the default login shell of an existing valid user) without touching the /etc/passwd file. Thanks
...
what is the preferred way to mutate a React state?
...say I have a list of plain objects in my this.state.list that I can then use to render a list of children. What then is the right way to insert object into this.state.list ?
...
What is the meaning of “__attribute__((packed, aligned(4))) ”
It is C language.It is written that:
3 Answers
3
...
In ASP.NET, when should I use Session.Clear() rather than Session.Abandon()?
... Session.Clear() and Session.Abandon() get rid of session variables. As I understand it, Abandon() ends the current session, and causes a new session to be created thus causing the End and Start events to fire.
...