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How to save a Python interactive session?
...yself frequently using Python's interpreter to work with databases, files, etc -- basically a lot of manual formatting of semi-structured data. I don't properly save and clean up the useful bits as often as I would like. Is there a way to save my input into the shell (db connections, variable assi...
How to tell Eclipse Workspace?
...s seems the least painful one - no modded start up script, no menu checks, etc. Then again it should be simple to write a small plugin to tweak the window title to show the workspace folder name unless it is set in the above mentioned preference. Fortunately, my workspaces aren't that dynamic; for o...
Unix command to prepend text to a file
... Note that '\n' only works for GNU sed, not BSD (such as OSX, FreeBSD, etc.). To be more portable with those, see: stackoverflow.com/questions/1421478/…
– jwd
Jun 27 '17 at 23:19
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How to Apply Gradient to background view of iOS Swift App
...en you add a sublayer it may sit over all your other items, labels, image, etc. To overcome this create another view that sits below everything and set its constraints to that of the container you want the gradient in. Then set the gradient to be applied to this view. Subviews will then be inserted ...
DataTrigger where value is NOT null?
... equality.
This blog post describes how to do comparisons such as LT, GT, etc in a DataTrigger.
This limitation of the DataTrigger can be worked around to some extent by using a Converter to massage the data into a special value you can then compare against, as suggested in Robert Macnee's answer....
jQuery Popup Bubble/Tooltip [closed]
...need to have all manners of HTML and styling including hyperlinks, images, etc.
13 Answers
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PHP function to get the subdomain of a URL
... That works for everything that has a single 'word' TLD like net, com, biz etc. However when dealing with co.uk, for example, it does not. As seen here This is actually a harder problem to solve.
– Mike Lewis
Mar 13 '11 at 23:12
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Difference between null and empty (“”) Java String
...u can convert it to lower case, look up the index of some character in it, etc. The null string null is "no string at all." It doesn't have a length because it's not a string at all. Trying to apply any standard string operation to the null string will cause a NullPointerException at runtime.
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Exit single-user mode
...aced with an error message that the given database is in single user mode, etc.
– youcantryreachingme
Apr 10 '19 at 3:42
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How can I get Docker Linux container information from within the container itself?
...be the short container id in Docker 1.12
root@d2258e6dec11:/project# cat /etc/hostname
d2258e6dec11
Externally
$ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d2258e6dec11 300518d26271...