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How to get nice formatting in the Rails console
... :access => "Public",
:website => "http://www.hayesdubuque.com",
:toll_free_phone => "1-800-932-6571",
:phone => "(111)549-5002",
:fax => "(349)415-2266",
:deleted_at => nil,
:created...
How to select the nth row in a SQL database table?
...mple approach, which worked on a small dataset that I tried it on.
select top 1 field
from table
where field in (select top 5 field from table order by field asc)
order by field desc
This would get the 5th item, change the second top number to get a different nth item
SQL server only (I think) b...
LEGO EV3 机器人传感器面板 · App Inventor 2 中文网
...e.clientX - element.offsetLeft; offsetY = e.clientY - element.offsetTop; return false; // 防止文本选中 }; // 鼠标移动时拖动元素 document.onmousemove = function(e) { if (!isDragging) return; element.style.left = (e.clientX - offsetX) + '...
Build unsigned APK file with Android Studio
...our APK file with Gradle:
Click the dropdown menu in the toolbar at the top (Open 'Edit Run/Debug configurations' dialog)
Select "Edit Configurations"
Click the "+"
Select "Gradle"
Choose your module as a Gradle project
In Tasks: enter assemble
Press Run
Your unsigned APK is now located in
Pr...
Smallest data URI image possible for a transparent image
...
data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'/%3E
The final length depends on what it's gzipped with.
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How to style CSS role
...an do in this mode:
#content[role="main"]{
//style
}
http://www.w3.org/TR/selectors/#attribute-selectors
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How to get the last N records in mongodb?
...
Look under Querying: Sorting and Natural Order, http://www.mongodb.org/display/DOCS/Sorting+and+Natural+Order
as well as sort() under Cursor Methods
http://www.mongodb.org/display/DOCS/Advanced+Queries
sh...
Unable to evaluate expression because the code is optimized or a native frame is on top of the call
I am getting the error:
12 Answers
12
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What is “pom” packaging in maven?
...aven before today, but I have been googling quite a bit. It seems like the top level pom.xml files in this project have the packaging type set as pom .
...
Should IBOutlets be strong or weak under ARC?
... Outlets should generally be weak, except for those from File’s Owner to top-level objects in a nib file (or, in iOS, a storyboard scene) which should be strong. Outlets that you create will therefore typically be weak by default, because:
Outlets that you create to, for example, subviews ...