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How to group dataframe rows into list in pandas groupby?
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This takes a lot of time if the dataset is huge, say 10million rows. Is there any faster way to do this? The number of uniques in 'a' is however around 500k
– Abhishek Thakur
Mar 6 '14 at 11:12
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How to get the parents of a merge commit in git?
...eir number: the first (leftmost) hash is for the first parent, and so on.
If all you want is just the hashes, the two equivalent choices are:
$ git log --pretty=%P -n 1 <commit>
$ git show -s --pretty=%P <commit>
git rev-list can also show the parents' hashes, though it will first li...
Stop setInterval
...rval in the error handler from running repeatedly. Is that possible, and if so, how?
6 Answers
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ping response “Request timed out.” vs “Destination Host unreachable”
When I ping an IP address, what is the difference between Request timed out and Destination host unreachable returned from the command?
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Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
... "127.0.0.1" the TCP/IP connector is used. You could try using "127.0.0.1" if the socket connector is not enabled/working.
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Bootstrap full-width text-input within inline-form
...s all form elements gets when they got the class form-control didn't apply if you use the form-inline class on your form.
You could take a look at the bootstrap.css (or .less, whatever you prefer) where you will find this part:
.form-inline {
// Kick in the inline
@media (min-width: @screen-s...
Equivalent of “continue” in Ruby
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Yes, it's called next.
for i in 0..5
if i < 2
next
end
puts "Value of local variable is #{i}"
end
This outputs the following:
Value of local variable is 2
Value of local variable is 3
Value of local variable is 4
Value of local variable is 5
=&...
Catching all javascript unhandled exceptions
...rror events do not trigger window.onerror, you have to listen for them specifically." -developer.mozilla.org/en-US/docs/Web/API/…
– shusson
Mar 3 '14 at 0:33
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How to add multiple font files for the same font?
...c . How can I embed all three files in one @font-face rule? For example, if I have:
6 Answers
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How can I convert an image into a Base64 string?
...); // bm is the bitmap object
byte[] b = baos.toByteArray();
* Update *
If you're using an older SDK library (because you want it to work on phones with older versions of the OS) you won't have the Base64 class packaged in (since it just came out in API level 8 AKA version 2.2).
Check this artic...