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knitr Markdown highlighting in Emacs?
...accordingly):
;; Just an Emacs personal dir containing polymode packages etc.
(setq MY-EMACS "~/conf/emacs")
(defun my-emacs (subfolder)
"Get path to personal dir + subfolder"
(concat (expand-file-name MY-EMACS) "/" subfolder))
;; ESS Markdown
;; -------------
(defun rmd-mode ()
"ESS Markdo...
What's Pros and Cons: putting javascript in head and putting just before the body close
...er the page is visible to the user.
If you are adding styles or elements (etc. switching textfields with some form of richer editor) this will be visible to the user as flickering.
If you are adding click-events to elements, they will not be clickable until a bit after the elements themselves are ...
What is the advantage to using bloom filters?
...ing in your data set. If it doesn't, no extra work is done. No disk reads, etc. (Which you would have to do if it were a hash or tree, etc).
Otherwise, if the filter says "Yes, it's in there", there's a 1% chance that it's wrong, so you do the necessary work to find out. 99% of the time, it really ...
Python group by
...
Python's built-in itertools module actually has a groupby function , but for that the elements to be grouped must first be sorted such that the elements to be grouped are contiguous in the list:
from operator import itemgetter
sortkeyfn = itemgetter(1)
input = [(...
I ran into a merge conflict. How can I abort the merge?
... you to use the "theirs" merge strategy:
git pull --strategy=theirs remote_branch
But this has since been removed, as explained in this message by Junio Hamano (the Git maintainer). As noted in the link, instead you would do this:
git fetch origin
git reset --hard origin
...
Set markers for individual points on a line in Matplotlib
... to plot lines on a figure. Now I would now like to set the style, specifically the marker, for individual points on the line. How do I do this?
...
Why does one use dependency injection?
...e virtual functions and interfaces (although I do once in a blue moon) and all my configuration is magically serialized into a class using json.net (sometimes using an XML serializer).
...
How to check if a table exists in a given schema
... (like OIDs) gets lost in translation from the system catalogs - which actually carry all information.
System catalogs
Your question was:
How to check whether a table exists?
SELECT EXISTS (
SELECT FROM pg_catalog.pg_class c
JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHE...
What is the difference between mocking and spying when using Mockito?
...
The answer is in the documentation:
Real partial mocks (Since 1.8.0)
Finally, after many internal debates & discussions on the mailing list, partial mock support was added to Mockito. Previously we considered partial mocks as code smells. However, we found a legitimate use case for partial mo...
JPA: How to have one-to-many relation of the same Entity type
... Collection<A> children;
// Getters, Setters, serialVersionUID, etc...
}
Here's a rough main() method that persists three such entities:
public static void main(String[] args) {
EntityManager em = ... // from EntityManagerFactory, injection, etc.
em.getTransaction().begin();
...