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In R, how to get an object's name after it is sent to a function?
I am looking for the reverse of get() .
3 Answers
3
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How to print a string in fixed width?
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EDIT 2013-12-11 - This answer is very old. It is still valid and correct, but people looking at this should prefer the new format syntax.
You can use string formatting like this:
>>> print '%5s' % 'aa'
aa
>>> print '%5s' % 'aaa'
aaa
>>> print '%5s' % 'aaaa'...
How to check if all of the following items are in a list?
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Operators like <= in Python are generally not overriden to mean something significantly different than "less than or equal to". It's unusual for the standard library does this--it smells like legacy API to me.
Use the equivale...
jQuery: Adding two attributes via the .attr(); method
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Should work:
.attr({
target:"nw",
title:"Opens in a new window",
"data-value":"internal link" // attributes which contain dash(-) should be covered in quotes.
});
Note:
" When setting multiple attributes, the quotes ar...
What are the risks of running 'sudo pip'?
Occasionally I run into comments or responses that state emphatically that running pip under sudo is "wrong" or "bad", but there are cases (including the way I have a bunch of tools set up) where it is either much simpler, or even necessary to run it that way.
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Validate uniqueness of multiple columns
Is there a rails-way way to validate that an actual record is unique and not just a column? For example, a friendship model / table should not be able to have multiple identical records like:
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OAuth 2.0: Benefits and use cases — why?
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Background: I've written client and server stacks for OAuth 1.0a and 2.0.
Both OAuth 1.0a & 2.0 support two-legged authentication, where a server is assured of a user's identity, and three-legged authentication, where a server is assured by a content provider of the user...
Parse date string and change format
I have a date string with the format 'Mon Feb 15 2010'. I want to change the format to '15/02/2010'. How can I do this?
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How to get a DOM Element from a JQuery Selector
...bly hard time finding out to get the actual DOMElement from a jquery selector. Sample Code:
4 Answers
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How do you represent a graph in Haskell?
It's easy enough to represent a tree or list in haskell using algebraic data types. But how would you go about typographically representing a graph? It seems that you need to have pointers. I'm guessing you could have something like
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