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Is there a way to detect if an image is blurry?
...k of a way to tell if such a smooth area is "blurry", or to distinguish it from an out-of-focus area. You should ask this as a separate question (maybe on DSP.SE). Maybe someone else has better ideas.
– Niki
Nov 2 '12 at 8:28
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Why should eval be avoided in Bash, and what should I use instead?
...g higher than &2) to your target:
exec 3<&0 # Redirect from stdin
exec 3>&1 # Redirect to stdout
exec 3>&2 # Redirect to stderr
exec 3> /dev/null # Don't save output anywhere
exec 3> file.txt # Redirect to file
exec 3> "$var" # Redirect ...
Delete ActionLink with confirm dialog
...a delete button on my Details view. I eventually realised I needed to post from that view:
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
@Html.HiddenFor(model => model.Id)
@Html.ActionLink("Edit", "Edit", new { id = Model.Id }, new { @class = "b...
What is a 'SAM type' in Java?
...ymous classes and are less restrictive on method naming. Take this example from the link:
class Person {
private final String name;
private final int age;
public static int compareByAge(Person a, Person b) { ... }
public static int compareByName(Person a, Person b) { ... }
}
Per...
How to change navbar collapse threshold using Twitter bootstrap-responsive?
...t your desired drop point of 550px. I modified the original query straight from the bootstrap-responsive css to reset all the styles applied to that specific query for the navbar elements and ported them to the new query that carries the drop point you need instead. This way we can commute all the s...
Test if string is a number in Ruby on Rails
...ic?, to stay in line with ruby naming conventions (Numeric classes inherit from Numeric, is_ prefixes are javaish).
– Konrad Reiche
Jun 24 '12 at 18:34
10
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PHP: Count a stdClass object
I have a stdClass object created from json_decode that won't return the right number when I run the count($obj) function. The object has 30 properties, but the return on the count() function is say 1.
...
Backwards migration with Django South
... Exactly -- South never skips migrations; it expects that the files from 0001-nnnn represent a consistent set of migrations, for any value of nnnn. If that's not the case, then you need to re-order or delete the offending ones yourself.
– Ian Clelland
Au...
SortedList, SortedDictionary and Dictionary
... for
SortedList(TKey, TValue).
If the list is populated all at once from sorted data,
SortedList(TKey, TValue) is faster than SortedDictionary(TKey,
TValue).
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Specifying colClasses in the read.csv
...
If you want to refer to names from the header rather than column numbers, you can use something like this:
fname <- "test.csv"
headset <- read.csv(fname, header = TRUE, nrows = 10)
classes <- sapply(headset, class)
classes[names(classes) %in% c(...