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R script line numbers at error?
If I am running a long R script from the command line (R --slave script.R), how can I get it to give line numbers at errors?
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Using sphinx with Markdown instead of RST
...lready exist for most). Ways to approach that without developing a parser from scratch:
You could cheat and write a "parser" that uses Pandoc to convert markdown to RST and pass that to the RST parser :-).
You can use an existing markdown->XML parser and transform the result (using XSLT?) to t...
Working with $scope.$emit and $scope.$on
How can I send my $scope object from one controller to another using .$emit and .$on methods?
12 Answers
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What is the difference between an abstract function and a virtual function?
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Coming from Java, I was a bit perplexed why we need to make it virtual at all, until I read this: stackoverflow.com/a/1062126/193634
– Rosdi Kasim
Apr 17 '13 at 7:18
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What is Java String interning?
...n the heap. Calling intern() on a String has the effect of moving
it out from the heap into the permanent generation, and you risk
running out of PermGen space.
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From: http://www.codeinstructions.com/2009/01/busting-javalangstringintern-myths.html
From JDK 7 (I mean in HotSpot), somethi...
What is DOM Event delegation?
...and code that dynamically creates new elements on the fly can be decoupled from the logic of binding their event handlers.
Another benefit to event delegation is that the total memory footprint used by event listeners goes down (since the number of event bindings go down). It may not make much of a...
How to make a class JSON serializable
...wn custom serialization.
For a trivial example, see below.
>>> from json import JSONEncoder
>>> class MyEncoder(JSONEncoder):
def default(self, o):
return o.__dict__
>>> MyEncoder().encode(f)
'{"fname": "/foo/bar"}'
Then you pass this class in...
serve current directory from command line
could someone give me a hint, howto serve the current directory from command line with ruby? it would be great, if i can have some system wide configuration (e.g. mime-types) and simply launch it from every directory.
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How to configure Ruby on Rails with no database?
...d for a database. I know I could create an empty database in MySQL and go from there, but does anyone know a better way to run Rails without a database?
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Validating with an XML schema in Python
...xslt-devel
The simplest validator
Let's create simplest validator.py
from lxml import etree
def validate(xml_path: str, xsd_path: str) -> bool:
xmlschema_doc = etree.parse(xsd_path)
xmlschema = etree.XMLSchema(xmlschema_doc)
xml_doc = etree.parse(xml_path)
result = xmlsch...