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How to initialise a string from NSData in Swift
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Single script to run in both Windows batch and Linux Bash?
...t forget that any use of $? must be before your next colon : because : resets $? to 0.
:; echo "Hi, I’m ${SHELL}."; exit $?
@ECHO OFF
ECHO I'm %COMSPEC%
A very contrived example of guarding $?:
:; false; ret=$?
:; [ ${ret} = 0 ] || { echo "Program failed with code ${ret}." >&2; exit 1; ...
How to debug an apache virtual host configuration?
Once again, I have a problem with my apache virtual host configuration. (The default configuration is used instead of my specific one).
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Compare two DataFrames and output their differences side-by-side
...nd distinguish each frame with the keys parameter:
df_all = pd.concat([df.set_index('id'), df2.set_index('id')],
axis='columns', keys=['First', 'Second'])
df_all
It's probably easier to swap the column levels and put the same column names next to each other:
df_final = df_a...
How to enable or disable an anchor using jQuery?
...deTo("fast", .5).removeAttr("href");
});
});
Enabling would involve setting the href attribute
$(document).ready(function(){
$("a").click(function () {
$(this).fadeIn("fast").attr("href", "http://whatever.com/wherever.html");
});
});
This gives you the appearance that the...
All Ruby tests raising: undefined method `authenticate' for nil:NilClass
...ion that worked for me.
You will need to log out an anonymous user before setting up variables:
before :each do
sign_out :user
end
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Align items in a stack panel?
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if you want to let item align right most, set LastChildFill="False" that is <DockPanel LastChildFill="False">, see stackoverflow.com/a/9599290/4573839
– yu yang Jian
Jul 20 '18 at 2:08
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How to add a margin to a table row [duplicate]
...tr> is based on content. Adding your suggested spacer <tr> with a set height works perfectly, though.
– baacke
Jan 22 '14 at 19:08
3
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How can I see what has changed in a file before committing to git?
...view all unstaged changes (it shows the diff for each file), choose a good set of changes that ought to go with a commit, then when you have staged all of those, then use git commit, and repeat for the next commit. Then you can make each commit be a useful or meaningful set of changes even if they ...
Removing pip's cache?
...hich can be used to configure pip to always ignore the cache -- pip config set global.cache-dir false configures pip to not use the cache "globally" (i.e. in all commands).
Since pip 20.1, pip has a pip cache command to manage the contents of pip's cache.
pip cache purge removes all the wheel files...