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Is there any way to delete local commits in Mercurial?
So I keep making a silly mistake in Mercurial. Often times, I'll start work without doing an "hg pull" and an "hg update." When I try to push my changes, I get an error.
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How to sort Map values by key in Java?
...he demonstration, but doesn't have to be a lambda expression
Comparator<Foo> comparator = (Foo o1, Foo o2) -> {
...
}
SortedSet<Foo> keys = new TreeSet<>(comparator);
keys.addAll(map.keySet());
Remember when using a TreeMap or TreeSet that it will have different p...
What is the minimum valid JSON?
... between an "XML document" and an "XML fragment", although technically <foo /> is a well-formed XML document (it would be better written as <?xml version="1.0" ?><foo />, but as pointed out in comments, the <?xml declaration is technically optional).
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postgresql list and order tables by size
How can I list all the tables of a PostgreSQL database and order them by size ?
7 Answers
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How to create an alias for a command in Vim?
...cted result depending on the actual buffer content and VIM settings: :%s/W/foo/g<CR> :%s/w/foo/g<CR>
– cprn
Apr 25 '12 at 2:00
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Importing data from a JSON file into R
Is there a way to import data from a JSON file into R? More specifically, the file is an array of JSON objects with string fields, objects, and arrays. The RJSON Package isn't very clear on how to deal with this http://cran.r-project.org/web/packages/rjson/rjson.pdf .
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remove all variables except functions
... env))
}
obj.type <- function(x) class(get(x, envir = env))
foo <- sapply(ls(envir = env), obj.type)
object.name <- names(foo)
names(foo) <- seq(length(foo))
dd <- data.frame(CLASS = foo, OBJECT = object.name,
stringsAsFactors = FALSE)
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Test for existence of nested JavaScript object key
...vel1', 'level2', 'level3'); // true
checkNested(test, 'level1', 'level2', 'foo'); // false
ES6 UPDATE:
Here is a shorter version of the original function, using ES6 features and recursion (it's also in proper tail call form):
function checkNested(obj, level, ...rest) {
if (obj === undefined) ...
Using logging in multiple modules
...E.g.
#my_module
import logging
logger = logging.getLogger(__name__)
def foo():
logger.info('Hi, foo')
class Bar(object):
def bar(self):
logger.info('Hi, bar')
And in your main module :
#main
import logging
# load my module - this now configures the logger
import my_module
# ...
Using Chrome, how to find to which events are bound to an element
...ID should take you to the binding function eventually.
Ex: searching for #foo would take you to
$('#foo').click(function(){ alert('bar'); })
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