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How to go back to lines edited before the last one in Vim?
I'm aware of the `. command that goes to last edited line. Is there a way to go further in the editing history? I often accidentally insert something while browsing the file, undo, but then `. will not bring me where I want anymore.
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Why Maven uses JDK 1.6 but my java -version is 1.7
I'm new to maven, and also to MacOS.
9 Answers
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ActiveRecord.find(array_of_ids), preserving order
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.ids works fine for me, and is pretty fast activerecord documentation
– TheJKFever
Jul 8 '15 at 15:26
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Install a Windows service using a Windows command prompt?
I want to install a Windows service using a Windows command prompt (not the Visual Studio command prompt).
18 Answers
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Colorized grep — viewing the entire file with highlighted matches
...y, "pattern|$" will match lines that have the pattern you're searching for AND lines that have an end -- that is, all of them. Because the end of a line isn't actually any characters, the colorized portion of the output will just be your pattern. Thanks Ryan!
– zslayton
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Difference between SurfaceView and View?
... if you need to update GUI rapidly or if the rendering takes too much time and affects user experience then use SurfaceView.
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Ruby function to remove all white spaces?
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If you want to remove only leading and trailing whitespace (like PHP's trim) you can use .strip, but if you want to remove all whitespace, you can use .gsub(/\s+/, "") instead .
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C/C++ line number
... of debugging purposes, can I get the line number in C /C++ compilers?
(standard way or specific ways for certain compilers)
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Getting the docstring from a function
... BTW: This technique works with builtin functions as well as modules and classes (test help() with objects too - might also work). This makes your python shell an interactive help shell!
– Daren Thomas
Apr 3 '09 at 9:24
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Count table rows
What is the MySQL command to retrieve the count of records in a table?
11 Answers
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