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What are the differences between vector and list data types in R?
What are the main differences between vector and list data types in R? What are the advantages or disadvantages of using (or not) these two data types?
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How to fix committing to the wrong Git branch?
...mit to the wrong branch.
How do I undo the last commit in my master branch and then take those same changes and get them into my upgrade branch?
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How can I unstage my files again after making a local commit?
I have executed the following command
7 Answers
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MySQL Query - Records between Today and Last 30 Days
...')
FROM mytable
WHERE create_date BETWEEN CURDATE() - INTERVAL 30 DAY AND CURDATE()
Also note that CURDATE() returns only the DATE portion of the date, so if you store create_date as a DATETIME with the time portion filled, this query will not select the today's records.
In this case, you'll...
Does ARC support dispatch queues?
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The short answer: YES, ARC retains and releases dispatch queues.
And now for the long answer…
If your deployment target is lower than iOS 6.0 or Mac OS X 10.8
You need to use dispatch_retain and dispatch_release on your queue. ARC does not manage ...
Move cursor to end of file in vim
...t to stay in normal mode try G) (or <ESC>G) if you're in insert mode and want to end in normal mode over the last character). Same number of keystrokes, but to end up in normal mode instead of insert mode. I find this useful occasionally when I want to run some normal command on the last word ...
Recommended add-ons/plugins for Microsoft Visual Studio [closed]
...E) Source Control
ReSharper - IDE enhancement that helps with refactoring and productivity
CodeRush - Code gen macros on steroids
Refactor - Code refactoring aid
CodeMaid (FREE) - Code cleanup, organization and complexity analysis
CodeSmith - Code Generator
GhostDoc - (FREE) Simple code commen...
How to store decimal values in SQL Server?
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That gives you a total of 18 digits, 4 of which after the decimal point (and 14 before the decimal point).
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What is the difference between a WCF Service Application and a WCF Service Library?
I am developing a WCF web service and I used the WCF Service Application template to do that.
2 Answers
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Checking if an Android application is running in the background
... completely reliable:
The right solution (credits go to Dan, CommonsWare and NeTeInStEiN)
Track visibility of your application by yourself using Activity.onPause, Activity.onResume methods. Store "visibility" status in some other class. Good choices are your own implementation of the Application o...