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String isNullOrEmpty in Java? [duplicate]
...lank(str) or StringUtils.isNotBlank(str)
from Apache commons-lang.
The difference between empty and blank is : a string consisted of whitespaces only is blank but isn't empty.
I generally prefer using apache-commons if possible, instead of writing my own utility methods, although that is also pl...
deny direct access to a folder and file by htaccess
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I would just move the includes folder out of the web-root, but if you want to block direct access to the whole includes folder, you can put a .htaccess file in that folder that contains just:
deny from all
That way you cannot open any file from that folder, but you can include them in...
jquery, find next element by class
... use .next(), like this:
$(obj).closest('tr').next().find('.class');
Or if there may be rows in-between without the .class inside, you can use .nextAll(), like this:
$(obj).closest('tr').nextAll(':has(.class):first').find('.class');
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jQuery remove options from select
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This is the easiest if you don't need to know the value. For example removing the first option $("#affiliate")[0][0].remove();
– ladieu
Mar 6 '14 at 20:13
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Equivalent of Math.Min & Math.Max for Dates?
...ty, that is not retained in the new value. This is normally not a problem; if you compare DateTime values of different kinds the comparison doesn't make sense anyway.)
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How to revert a Git Submodule pointer to the commit stored in the containing repository?
...d it, the main repo stores a SHA value (somewhere...), pointing to the specific commit of the submodule that it is "linked to".
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Prevent user from seeing previously visited secured page after logout
...n an url-pattern of interest, for example *.jsp.
@WebFilter("*.jsp")
Or if you want to put this restriction on secured pages only, then you should specify an URL pattern which covers all those secured pages. For example, when they are all in the folder /app, then you need to specify the URL patte...
List all files and directories in a directory + subdirectories
...d directory contained in a directory and subdirectories of that directory. If I chose C:\ as the directory, the program would get every name of every file and folder on the hard drive that it had access to.
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How to change the text of a button in jQuery?
...btnAddProfile").prop('value', 'Save'); //versions newer than 1.6
<!-- Different button types-->
<button id='btnAddProfile' type='button'>Add</button>
$("#btnAddProfile").html('Save');
Your button could also be a link. You'll need to post some HTML for a more specific answer.
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Viewing a Deleted File in Git
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git show HEAD^:path/to/file
You can use an explicit commit identifier or HEAD~n to see older versions or if there has been more than one commit since you deleted it.
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