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Using R to list all files with a specified extension
I'm very new to R and am working on updating an R script to iterate through a series of .dbf tables created using ArcGIS and produce a series of graphs.
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Does java.util.List.isEmpty() check if the list itself is null? [duplicate]
Does java.util.List.isEmpty() check if the list itself is null , or do I have to do this check myself?
8 Answers
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Is there a more elegant way of adding an item to a Dictionary safely?
...y already exists otherwise I get a " key already exists in dictionary " error. The code below solves this but is clunky.
5 ...
Spring classpath prefix difference
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there is one more interesting difference between them. See my question also : stackoverflow.com/questions/16985770/…
– Eugene
Jun 8 '13 at 18:48
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When is .then(success, fail) considered an antipattern for promises?
...ss, fail) is an antipattern . I don't quite understand its explanation as for the try and catch.
What's wrong with this the following?
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Getting the caller function name inside another function in Python? [duplicate]
...dule to get the info you want. Its stack method returns a list of frame records.
For Python 2 each frame record is a list. The third element in each record is the caller name. What you want is this:
>>> import inspect
>>> def f():
... print inspect.stack()[1][3]
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How efficient can Meteor be while sharing a huge collection among many clients?
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The short answer is that only new data gets sent down the wire. Here's
how it works.
There are three important parts of the Meteor server that manage
subscriptions: the publish function, which defines the logic for what
data the ...
How to copy part of an array to another array in C#?
...nd Skip() are the most popular answers, as well as Array.CopyTo().
A purportedly faster extension method is described here.
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What does `:_*` (colon underscore star) do in Scala?
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It "splats"1 the sequence.
Look at the constructor signature
new Elem(prefix: String, label: String, attributes: MetaData, scope: NamespaceBinding,
child: Node*)
which is called as
new Elem(prefix, label, attributes, scope,
child1, child2, ... childN)...
CORS - How do 'preflight' an httprequest?
... HTTP request to WCF service (that I own). I have read several techniques for working with the cross domain scripting limitations. Because my service must accommodate both GET and POST requests I cannot implement some dynamic script tag whose src is the URL of a GET request. Since I am free to make ...