大约有 46,000 项符合查询结果（耗时：0.0589秒） [XML]
Rails has_many with alias name
...
FYI: this also works for has_and_belongs_to_many associations, only no need for the "foreign_key" piece
– David Moritz
Jun 6 '18 at 21:04
...
How to get a complete list of ticker symbols from Yahoo Finance? [closed]
I've googled endlessly for a method of getting a complete (and daily updated) list of all Yahoo ticker symbols available through http://finance.yahoo.com
...
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
... more apps is looking in the other location for it. Find out with this command:
ls -l /tmp/mysql.sock /var/mysql/mysql.sock
Rather than move the socket, edit config files, and have to remember to keep edited files local and away from servers where the paths are correct, simply create a symbolic l...
Checking from shell script if a directory contains files
...{#files} -gt 0 ]; or maybe you just forgot the () around the sub-shell command? files=($(shopt -s nullglob;shopt -s dotglob;echo /some/dir/*))
– stoutyhk
Jul 4 '13 at 17:48
...
Pandas dataframe get first row of each group
I have a pandas DataFrame like following.
5 Answers
5
...
Mercurial .hgignore for Visual Studio 2010 projects
...re asking about an entry that's already there.. Feel free to edit the list and yes I totally agree, it should be added
– Shady M. Najib
Apr 14 '11 at 12:07
2
...
Change / Add syntax highlighting for a language in Sublime 2/3
.... For example, the JavaScript.tmLanguage file assigns the scopes source.js and variable.language.js to the this keyword. Since Sublime Text 3 is using the .sublime-package zip file format to store all the default settings it's not very straightforward to edit the individual files.
Unfortunately, no...
Get the real width and height of an image with JavaScript? (in Safari/Chrome)
...
Webkit browsers set the height and width property after the image is loaded. Instead of using timeouts, I'd recommend using an image's onload event. Here's a quick example:
var img = $("img")[0]; // Get my img elem
var pic_real_width, pic_real_height;
$...
Uninstall all installed gems, in OSX?
There are instances where I would like to revert and uninstall all previous gem installations.
13 Answers
...
Selecting text in an element (akin to highlighting with your mouse)
...nd a solution for this in this thread. I was able to modify the info given and mix it with a bit of jQuery to create a totally awesome function to select the text in any element, regardless of browser:
function SelectText(element) {
var text = document.getElementById(element);
if ($.browser...