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How to find out element position in slice?
How does one determine the position of an element present in slice?
6 Answers
6
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Programmatically change log level in Log4j2
...e's a reason for doing it with five lines of code rather than the original one line in previous versions of log4j, but I just don't see it. In any case, thanks for this, @slaadvak!
– Sturm
May 23 '14 at 17:47
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What is the optimal length for an email address in a database?
...is that it's a Poisson distribution rather than a normal distribution - anyone have ideas why it's like that? :P
– pageman
Jul 29 '09 at 10:47
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What is the difference between canonical name, simple name and class name in Java Class?
...t's the kind of assumption that would allow a malicious actor to work. Someone saying "oh, well we know classes will never start with lowercases/packages will never start with capitals". Granted, a malicious actor who has access to your class loader can already do terrible things, so it's probably n...
When would you use a WeakHashMap or a WeakReference?
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One problem with strong references is
caching, particular with very large
structures like images. Suppose you
have an application which has to work
with user-supplied images, like the
web site design tool I work on....
In Python, using argparse, allow only positive integers
... from the docs. Also, I have said in my answer that Yuushi's answer is the one to go for. Good to give options. And in the case of argparse, it's happening once per execution, uses a generator (xrange) and doesn't require additional code. That trade-off is available. Up to each one to decide which w...
Comparing two dataframes and getting the differences
...u right, you want not to find changes, but symmetric difference. For that, one approach might be concatenate dataframes:
>>> df = pd.concat([df1, df2])
>>> df = df.reset_index(drop=True)
group by
>>> df_gpby = df.groupby(list(df.columns))
get index of unique records...
What is this CSS selector? [class*=“span”]
..."something"] { } "starts with" selector only works if the element contains one single class, or if multiple, when that class is the first one on the left.
– Nahn
Jan 8 '16 at 17:01
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How to color the Git console?
...o run git config --global color.ui auto. Same is true for my Mac, the only one that default to auto was Git Bash on my Windows PC.
– sargas
Mar 12 '14 at 17:24
1
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Add a duration to a moment (moment.js)
...ake. :)
If you use the return value, it is the same actual object as the one you started with. It's just returned as a convenience for method chaining.
You can work around this behavior by cloning the moment, as described here.
Also, you cannot just use == to test. You could format each moment...