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jQuery: Count number of list elements?
I've got a list that is generated from some server side code, before adding extra stuff to it with jQuery I need to figure out how many items are already in it.
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Order data frame rows according to vector with specific order
...actly the same elements as df$name, and neither contain duplicate values.
From ?match:
match returns a vector of the positions of (first) matches of its first argument
in its second.
Therefore match finds the row numbers that matches target's elements, and then we return df in that order.
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C++ Double Address Operator? (&&)
...at && address operator is supposed to do. Here is a code example from stl_vector.h :
5 Answers
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What are the differences between .so and .dylib on osx?
...namically load libraries. A set of dyld APIs (e.g. NSCreateObjectFileImageFromFile, NSLinkModule) were introduced with 10.1 to load and unload bundles, but they didn't work for dylibs. A dlopen compatibility library that worked with bundles was added in 10.3; in 10.4, dlopen was rewritten to be a ...
Usage of @see in JavaDoc?
...dA calls methodB is an implementation detail and there is no real relation from the outside, you don't need a link here.
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Parse rfc3339 date strings in Python? [duplicate]
...ptime which you supply a format string to (see Brent Washburne's answer).
from dateutil.parser import parse
a = "2012-10-09T19:00:55Z"
b = parse(a)
print(b.weekday())
# 1 (equal to a Tuesday)
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Create objective-c class instance by name?
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id object = [[NSClassFromString(@"NameofClass") alloc] init];
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Git pull after forced update
...ted. There'd be no need to rebase in that scenario (and you'd be prevented from doing so because of the uncommitted changes) because there's no difference in commit history. The two options are reset or rebase - not a combination of both. Please ask a question if your scenario is different than the ...
Semicolons superfluous at the end of a line in shell scripts?
...ne are not superfluous and are definitely not the same thing as new lines.
From the Bash Reference Manual
Commands separated by a ‘;’ are executed sequentially; the shell waits
for each command to terminate in turn. The return status is the exit
status of the last command executed.
Commands th...
What is a None value?
..., there was already an F sticker on the None, and all you did was move it, from None to "fork". So when you type F = None, you're "reset[ting] it to its original, empty state", if we decided to treat None as meaning empty state.
I can see what he's getting at, but that's a bad way to look at it. ...