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How can I get selector from jQuery object
...on">Button test</button>
</div>
<ul>
<li>Item one
<ul>
<li id="sub2" >Sub one</li>
<li id="sub2" class="subitem otherclass">Sub two</li>
</ul>
</li>
</ul>
</body>
</html>
For example, if ...
Rename multiple files based on pattern in Unix
...re are several ways, but using rename will probably be the easiest.
Using one version of rename:
rename 's/^fgh/jkl/' fgh*
Using another version of rename (same as Judy2K's answer):
rename fgh jkl fgh*
You should check your platform's man page to see which of the above applies.
...
Understanding Spliterator, Collector and Stream in Java 8
...lit off part of the collection, e.g. because you're parallelizing and want one thread to work on one part of the collection, one thread to work on another part, etc.
You should essentially never be saving values of type Stream to a variable, either. Stream is sort of like an Iterator, in that it's...
Why is my git repository so big?
...
I recently pulled the wrong remote repository into the local one (git remote add ... and git remote update). After deleting the unwanted remote ref, branches and tags I still had 1.4GB (!) of wasted space in my repository. I was only able to get rid of this by cloning it with git clo...
Delete column from pandas DataFrame
...1', 'Col2', ...]
df.drop(columns, inplace=True, axis=1)
This will delete one or more columns in-place. Note that inplace=True was added in pandas v0.13 and won't work on older versions. You'd have to assign the result back in that case:
df = df.drop(columns, axis=1)
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How to use null in switch
...
cleaner way than using one extra if else
– Vivek Agrawal
Nov 15 '19 at 10:28
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How to “properly” print a list?
...element of mylist, creating a new list of strings that is then joined into one string with str.join(). Then, the % string formatting operator substitutes the string in instead of %s in "[%s]".
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Getting a map() to return a list in Python 3.x
...eneralizations
UPDATE
Always seeking for shorter ways, I discovered this one also works:
*map(chr, [66, 53, 0, 94]),
Unpacking works in tuples too. Note the comma at the end. This makes it a tuple of 1 element. That is, it's equivalent to (*map(chr, [66, 53, 0, 94]),)
It's shorter by only one ...
How do I find the most recent git commit that modified a file?
...all it like this:
git log my/file.c
If you really only want to list the one most recent commit, for example to use it in a script, use the -n 1 option:
git log -n 1 --pretty=format:%H -- my/file.c
--pretty=format:%h tells git log to show only the commit hash. The -- separater stops the file na...
ActiveRecord: size vs count
...f you're dealing with more complex queries is there any advantage to using one method over the other? How are they different?
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