大约有 43,000 项符合查询结果（耗时：0.0542秒） [XML]
Ruby: How to get the first character of a string
...nd 2.1.
"Smith".chr #=> "S"
http://ruby-doc.org/core-1.9.3/String.html#method-i-chr
share
|
improve this answer
|
follow
|
...
How to list out all the subviews in a uiviewcontroller in iOS?
...ption, per http://developer.apple.com/library/ios/#technotes/tn2239/_index.html
It outputs a more complete view hierarchy which you might find useful:
> po [_myToolbar recursiveDescription]
<UIToolbarButton: 0xd866040; frame = (152 0; 15 44); opaque = NO; layer = <CALayer: 0xd864230>&...
How to check with javascript if connection is local host?
...
if launching static html in browser, eg from location like file:///C:/Documents and Settings/Administrator/Desktop/ detecting "localhost" will not work. location.hostname will return empty string. so
if (location.hostname === "localhost" || loc...
JPA CascadeType.ALL does not delete orphans
...s parent's collection. See download.oracle.com/javaee/6/tutorial/doc/bnbqa.html#giqxy
– Archie
Sep 13 '10 at 22:37
Ple...
Android Json and null values
... ).
Reference: http://developer.android.com/reference/org/json/JSONObject.html#isNull%28java.lang.String%29
share
|
improve this answer
|
follow
|
...
Difference between two dates in MySQL
...rom MySQL:
http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html
for example:
mysql> SELECT DATEDIFF('2007-12-31 23:59:59','2007-12-30 00:00:00') * 24*60*60
share
|
improve this...
Changing element style attribute dynamically using JavaScript
...
Assuming you have HTML like this:
<div id='thediv'></div>
If you want to modify the style attribute of this div, you'd use
document.getElementById('thediv').style.[ATTRIBUTE] = '[VALUE]'
Replace [ATTRIBUTE] with the style at...
Changing the color of an hr element
... also need to specify background-color (as @Ibu suggested in his answer).
HTML 5 Boilerplate project in its default stylesheet specifies the following rule:
hr { display: block; height: 1px;
border: 0; border-top: 1px solid #ccc;
margin: 1em 0; padding: 0; }
An article titled “12 Littl...
Pip install Matplotlib error with virtualenv
... -m pip install matplotlib
(from https://matplotlib.org/users/installing.html)
share
|
improve this answer
|
follow
|
...
how to check and set max_allowed_packet mysql variable [duplicate]
...read about it here http://dev.mysql.com/doc/refman/5.1/en/packet-too-large.html
EDIT
The [mysqld] is necessary to make the max_allowed_packet working since at least mysql version 5.5.
Recently setup an instance on AWS EC2 with Drupal and Solr Search Engine, which required 32M max_allowed_packet....