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How can I format a decimal to always show 2 decimal places?
...Traceback (most recent call last):
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Inexact: None
The next question reads
Q. Once I have valid two place inputs, how do I maintain that invariant throughout an application?
If you need the answer to that (along with lots of other useful information), see the aforementioned section of the do...
+ operator for array in PHP?
... and unintuitive. They're the opposite way round from what a plain-English reading would intuitively tell you 'adding' or 'merging' arrays would do. Other languages/libraries use + to concatenate lists (e.g. in Python) and "merge" functions to add the key/value pairs from one object onto another (e....
How to drop columns using Rails migration
...ion to drop a column and the migration will successfully rollback. Please read the following warning for Rails 3 applications:
Rails 3 Warning
Please note that when you use this command:
rails generate migration RemoveFieldNameFromTableName field_name:datatype
The generated migration will look...
Visual Studio loading symbols
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Indeed this works! Incredible! Has anyone already reported this obvious bug to Microsoft?
– real_yggdrasil
Sep 12 '12 at 9:54
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How can I extract audio from video with ffmpeg?
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-vn is no video.
-acodec copy says use the same audio stream that's already in there.
Read the output to see what codec it is, to set the right filename extension.
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How to get Bitmap from an Uri?
...rn bm;
}
But remember, this method should only be called from within a thread (not GUI -thread). I a AsyncTask.
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IntelliJ inspection gives “Cannot resolve symbol” but still compiles code
...he cache's need to have the proper permissions set for the IntelliJ app to read them.
Run it from the project's root folder.
$ mvn -U idea:idea
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Way to ng-repeat defined number of times instead of repeating over array?
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I think this jsFiddle from this thread might be what you're looking for.
<div ng-app ng-controller="Main">
<div ng-repeat="item in items | limitTo:2">
{{item.name}}
</div>
</div>
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Javascript Array.sort implementation?
...he the post on the V8 dev blog for details about this change. You can also read the source code or patch 1186801.
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Is there a way to access the “previous row” value in a SELECT statement?
...p all rows, with NULLs for the condition where there was no previous row. Reading it again you just want that rows culled, so you should an inner join rather than a left join.
Update:
Newer versions of Sql Server also have the LAG and LEAD Windowing functions that can be used for this, too.
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