大约有 15,000 项符合查询结果（耗时：0.0288秒） [XML]
How to run Rails console in the test environment and load test_helper.rb?
...
It's a little inconsistent because to start the server you type rails server -e test
– Jason
Jan 20 '11 at 22:14
...
Postgresql GROUP_CONCAT equivalent?
...
This is probably a good starting point (version 8.4+ only):
SELECT id_field, array_agg(value_field1), array_agg(value_field2)
FROM data_table
GROUP BY id_field
array_agg returns an array, but you can CAST that to text and edit as needed (see clar...
Play/pause HTML 5 video using JQuery
... element in a tab, the jquery reveals this, but then clicking on the video start arrow does not start the clip. When I remove the $('#videoId').get(0).play() line there is no problem. What is the best way around this? I was thinking I could remove the js with a condtional statement for iOS - the vid...
Does MySQL included with MAMP not include a config file?
...
The MySQL server of MAMP (not PRO) will be started without any my.cnf file. But you can create your own my.cnf file.
Stop servers
Create a my.cnf file in /Applications/MAMP/conf/
Add your content in to my.cnf
Save my.cnf
Start servers
You do not have to put a comp...
getResourceAsStream returns null
... Just to add on, When invoking getResourceAsStream(name), the name must start with "/". I am not sure whether this is necessary, but I have problem without it.
– David
Nov 15 '15 at 7:54
...
How to add MVC5 to Visual Studio 2013?
I'm starting a new project, and would like to give a try to MVC 5 (I have built a web app using MVC 4 before).
8 Answers
...
Is 'switch' faster than 'if'?
... (1 << 26)
size_t counter = 0;
long long testSwitch()
{
clock_t start = clock();
size_t i;
for (i = 0; i < MAX_COUNT; i++)
{
const size_t c = rand() % 20 + 1;
switch (c)
{
case 1: counter += 20; break;
case 2: counter...
What linux shell command returns a part of a string? [duplicate]
...
what do we need to do if we want to start from 3rd char till end of the string ie: "abcdef" we need cdef then echo "abcdef" | cut -c3?"
– user1731553
Apr 5 '16 at 5:46
...
Definitive way to trigger keypress events with jQuery
...ocus, save the lastFocus.element
On blur, save the current text selection (start and stop)
var pos = element.selection('getPos')
lastFocus.pos = { start: pos.start, end: pos.end}
When a
Is there a template engine for Node.js? [closed]
...
Jade is pretty cool. I've just started using it, so can't speak to it's performance, but I like the syntax. And built-in support in Express is a plus.
– broofa
Nov 22 '10 at 13:41
...