大约有 15,500 项符合查询结果（耗时：0.0297秒） [XML]
How to record webcam and audio using webRTC and a server-based Peer connection
...
@Redtopia In some recent load tests we were able to get 150 one2one connections of webrtc on an i5/16GB RAM. You can expect that these numbers will be better in the future, but don't expect miracles: there is a lot of encryption going on for SRTP, and tha...
Table name as variable
... set the table name based on the current year and month name, in this case TEST_2012OCTOBER. I then check if it exists in the DB already, and remove if it does. Then the next block will use a SELECT INTO Statement to create the table and populate it with records from another table with parameters.
...
Find rows with multiple duplicate fields with Active Record, Rails & Postgres
...
Tested & Working Version
User.select(:first,:email).group(:first,:email).having("count(*) > 1")
Also, this is a little unrelated but handy. If you want to see how times each combination was found, put .size at the e...
How do I deep copy a DateTime object?
...
I haven't tested it actually, but it is mentioned at php.net that this is only aviable for PHP 5.3 and greater.
– hugo der hungrige
Feb 1 '13 at 1:02
...
Passing data to a bootstrap modal
... make this work using jQuery's .on event handler.
Here's a fiddle you can test; just make sure to expand the HTML frame in the fiddle as much as possible so you can view the modal.
http://jsfiddle.net/Au9tc/605/
HTML
<p>Link 1</p>
<a data-toggle="modal" data-id="ISBN564541" title...
Is it a good practice to use try-except-else in Python?
...ns inherent in some of the "look-before-you-leap" constructs. For example, testing os.path.exists results in information that may be out-of-date by the time you use it. Likewise, Queue.full returns information that may be stale. The try-except-else style will produce more reliable code in these ca...
Get second child using jQuery
...jsperf.com/second-child-selector
The $(t).first().next() method is the fastest here, by far.
But, on the other hand, if you take the <tr> node and find the <td> children and and run the same test, the results won't be the same.
Hope it helps. :)
...
How to export JavaScript array info to csv (on client side)?
...
Based on the answers above I created this function that I have tested on IE 11, Chrome 36 and Firefox 29
function exportToCsv(filename, rows) {
var processRow = function (row) {
var finalVal = '';
for (var j = 0; j < row.length; j++) {
var innerValue ...
Youtube iframe wmode issue
...=opaque to the URL seems to solve this problem for me, although I have not tested it in IE yet.
For those of you having troubles with the previously proposed solution, note that an inital ampersand will only work if you are already supplying other arguments to the URL. The first argument must have ...
Strengths of Shell Scripting compared to Python [closed]
...rite a simple shell loop to do a number of operations using commands like "test" and "expr" and compare the run times with a Python script that uses the "os" module. Commands like test and expr often involve forking a subprocess to do the real work.
– S.Lott
A...