大约有 4,899 项符合查询结果（耗时：0.0247秒） [XML]
Allowed characters in Linux environment variable names
...names? My cursory search of man pages and the web did only produce information about how to work with variables, but not which names are allowed.
...
Popstate on page's load in Chrome
...e page and use history.pushState() in order to update the browser's location bar without page reload. Then, of course, I use window.popstate in order to restore previous state when back-button is clicked.
...
Spring Boot + JPA : Column name annotation ignored
I have a Spring Boot application with dependency spring-boot-starter-data-jpa . My entity class has a column annotation with a column name. For example:
...
What's the best way to detect a 'touch screen' device using JavaScript?
...m using jquery-mobile.js to detect the touch screen events and it works on iOS, Android etc., but I'd also like to write conditional statements based on whether the user's device has a touch screen.
...
How to run a command before a Bash script exits?
...
Here's an example of using trap:
#!/bin/bash -e
function cleanup {
echo "Removing /tmp/foo"
rm -r /tmp/foo
}
trap cleanup EXIT
mkdir /tmp/foo
asdffdsa #Fails
Output:
dbrown@luxury:~ $ sh traptest
t: line 9: asdffdsa: command not found
Removing /tmp/foo
dbrown@luxury:~ ...
Keyboard Interrupts with python's multiprocessing Pool
...
This is a Python bug. When waiting for a condition in threading.Condition.wait(), KeyboardInterrupt is never sent. Repro:
import threading
cond = threading.Condition(threading.Lock())
cond.acquire()
cond.wait(None)
print "done"
The KeyboardInterrupt exception won't be...
Anaconda vs. EPD Enthought vs. manual installation of Python [closed]
What are the relative merits / downsides of various Python bundles (EPD / Anaconda) vs. a manual install?
4 Answers
...
How to horizontally center a
...g on your html page to make it work well on IE.
– Fabio
Jan 28 '12 at 14:23
15
Note that it may b...
Single vs Double quotes (' vs ")
... requires that all attribute values be delimited using either double quotation marks (ASCII decimal 34) or single quotation marks (ASCII decimal 39). Single quote marks can be included within the attribute value when the value is delimited by double quote marks, and vice versa. Authors may also use ...
How to make a Bootstrap accordion collapse when clicking the header div?
In a Bootstrap accordion, instead of requiring a click on the a text, I want to make it collapse when clicking anywhere in the panel-heading div.
...