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How to run Rails console in the test environment and load test_helper.rb?
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It's a little inconsistent because to start the server you type rails server -e test
– Jason
Jan 20 '11 at 22:14
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Postgresql GROUP_CONCAT equivalent?
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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...
How to shrink/purge ibdata1 file in MySQL
...es except the above 2 databases
Stop mysql
Delete ibdata1 and ib_log files
Start mysql
Restore from dump
When you start MySQL in step 5 the ibdata1 and ib_log files will be recreated.
Now you're fit to go. When you create a new database for analysis, the tables will be located in separate ibd* f...
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
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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
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What linux shell command returns a part of a string? [duplicate]
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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
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Does MySQL included with MAMP not include a config file?
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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...
.NET Global exception handler in console application
...s generated by the jitter this way. They happen before your Main() method starts running. Catching those requires delaying the jitter, move the risky code into another method and apply the [MethodImpl(MethodImplOptions.NoInlining)] attribute to it.
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App Inventor 2 动态创建组件与布局教程 · App Inventor 2 中文网
...OfComponent(clickedComponent, "Name")
// 根据名称前缀判断
if (starts_with(compName, "btn_")) {
Notifier1.ShowAlert("按钮被点击")
} else if (starts_with(compName, "lbl_")) {
Notifier1.ShowAlert("标签被点击")
} else if (starts_with(compName, "chk_")) {
// 处理...