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Ubuntu rails install fails on zlib
...ard time getting Rails going. I have followed a number of tutorials which all seem to work fine, but when I try and use gem install or gem update on anything, I get an error that looks like this:
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JavaScript before leaving the page
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Just a note, if you want to conditionally display a message in onbeforeunload, return false will make the browser show "false" in a dialog. You need to return undefined if you want to let the window close with no user alert.
– Dan Fitch
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Delete a project from SonarQube
... Was having the same problem. Thanks for the screenshot, that really helped.
– Wim Deblauwe
Aug 31 '11 at 15:34
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Purpose of returning by const value? [duplicate]
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In the hypothetical situation where you could perform a potentially expensive non-const operation on an object, returning by const-value prevents you from accidentally calling this operation on a temporary. Imagine that + returned a non-const value, and you could write:
(a + b).expensiv...
Simulating group_concat MySQL function in Microsoft SQL Server 2005?
...how to concat values - group_concat concats them by group, which is more challenging (and what the OP appears to require). See the accepted answer to SO 15154644 for how to do this - the WHERE clause is the critical addition
– DJDave
Jan 11 '18 at 13:26
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Is there a fixed sized queue which removes excessive elements?
...ixed size. When I add an element and the queue is full, it should automatically remove the oldest element.
16 Answers
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Copying files from one directory to another in Java
..., available since version 1.2.
Using third party tools instead of writing all utilities by ourself seems to be a better idea. It can save time and other valuable resources.
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How do I see active SQL Server connections?
...t to see any active SQL Server connections, and the related information of all the connections, like from which IP address, connect to which database or something.
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Command Prompt - How to add a set path only for that batch file executing?
Basically, I know I can go through my control panel and modify the path variable. But, I'm wondering if there is a way to through batch programming have a temporary path included? That way it is only used during that batch file execution. I don't want to have people go in and modify their path varia...
Regex match everything after question mark?
...sted in.
If the string can contain new lines you may have to use the "dot all" modifier to allow the dot to match the new line character. Whether or not you have to do this, and how to do this, depends on the language you are using. It appears that you forgot to mention the programming language you...