大约有 9,000 项符合查询结果（耗时：0.0150秒） [XML]
Disable sorting for a particular column in jQuery DataTables
...you really mean [-1], then [1], [2], etc? What does the -1 mean? Doesn't indexing for columns begin at 1 for dataTables?
– Dan Nissenbaum
Feb 13 '14 at 6:49
1
...
Git status shows files as changed even though contents are the same
... resolved this problem using following steps
Remove every file from Git's index.
git rm --cached -r .
Rewrite the Git index to pick up all the new line endings.
git reset --hard
Note that step 2 may remove your local changes.
Solution was part of steps described on git site
https://help.github.c...
Is there an onSelect event or equivalent for HTML ?
...Here is the simplest way:
<select name="ab" onchange="if (this.selectedIndex) doSomething();">
<option value="-1">--</option>
<option value="1">option 1</option>
<option value="2">option 2</option>
<option value="3">option 3</optio...
How to see log files in MySQL?
... = /var/log/mysql/mysql-slow.log
long_query_time = 2
log-queries-not-using-indexes
step3: save the file and restart mysql using following commands
service mysql restart
To enable logs at runtime, login to mysql client (mysql -u root -p) and give:
SET GLOBAL general_log = 'ON';
SET GLOBAL slow_...
How to print a string in fixed width?
...entioned in the comments: the 0 in '{0: <5}' indicates the argument’s index passed to str.format().
Edit 2:
In python3 one could use also f-string:
sub_str='s'
for i in range(1,6):
s = sub_str*i
print(f'{s:>5}')
' s'
' ss'
' sss'
' ssss'
'sssss'
or:
for i in range(1,5):
...
What does it mean if a Python object is “subscriptable” or not?
...
The [...] indexing syntax is called a subscript, because it's equivalent to mathematical notation that uses actual subscripts; e.g. a[1] is Python for what mathematicians would write as a₁. So "subscriptable" means "able to be subscr...
Find object by id in an array of JavaScript objects
...ing function. Otherwise undefined is returned.
If you want to find its index instead, use findIndex():
myArray.findIndex(x => x.id === '45');
From MDN:
The findIndex() method returns the index of the first element in the array that satisfies the provided testing function. Otherwise -1 ...
phpmyadmin logs out after 1440 secs
... to /config.inc.php:
$cfg['LoginCookieValidity'] = 36000;
In /setup/lib/index.lib.php
$cf->getValue('LoginCookieValidity') > 36000;
If you don't already have a .htaccess file for your phpMyAdmin site, create one, and add the following line to override the default PHP session timeout:
ph...
How does one reorder columns in a data frame?
...order by column name
data <- data[c("A", "B", "C")]
#reorder by column index
data <- data[c(1,3,2)]
share
|
improve this answer
|
follow
|
...
How can I unstage my files again after making a local commit?
... should do what you want. After this, you'll have the first changes in the index (visible with git diff --cached), and your newest changes not staged. git status will then look like this:
# On branch master
# Changes to be committed:
# (use "git reset HEAD <file>..." to unstage)
#
# m...