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When are you truly forced to use UUID as part of the design?
... random bits) to make the likeyhood of a collision between this very small set of UUIDs nearly impossible.
strictly speaking, UUIDs only need to be unique among the set of other UUIDs that they might be compared against. If you're generating a UUID to use as a database key, it doesn't matter if som...
jQuery: how to get which button was clicked upon form submission?
I have a .submit() event set up for form submission. I also have multiple forms on the page, but just one here for this example. I'd like to know which submit button was clicked without applying a .click() event to each one.
...
Hidden Features of Xcode 4
...nu as you type your code. For example, among many others, I have a snippet set up so that typing "svk" will expand to setValue:<#value#> forKey:<#key#>. This can save a lot of typing and/or fishing around in the autocompletion menu for the methods and other code expressions you use the m...
Increase distance between text and title on the y-axis
...ment_text() to change the distance between the axis title and the numbers. Set the values of the margin on top, right, bottom, and left side of the element.
ggplot(mpg, aes(cty, hwy)) + geom_point()+
theme(axis.title.y = element_text(margin = margin(t = 0, r = 20, b = 0, l = 0)))
margin can a...
How to print to console in pytest?
...execution any output sent to stdout and stderr is captured. If a test or a setup method fails its according captured output will usually be shown along with the failure traceback.
pytest has the option --capture=method in which method is per-test capturing method, and could be one of the followin...
Is there a range class in C++11 for use with range based for loops?
I found myself writing this just a bit ago:
8 Answers
8
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How to redirect to a 404 in Rails?
...ender :text => 'Not Found', :status => '404'
Here's a typical test set of mine for something I expect to return 404, using RSpec and Shoulda matchers:
describe "user view" do
before do
get :show, :id => 'nonsense'
end
it { should_not assign_to :user }
it { should respond_wi...
How to generate gcc debug symbol outside the build target?
...rname ${0}`
scriptdir=`(cd ${scriptdir}; pwd)`
scriptname=`basename ${0}`
set -e
function errorexit()
{
errorcode=${1}
shift
echo $@
exit ${errorcode}
}
function usage()
{
echo "USAGE ${scriptname} <tostrip>"
}
tostripdir=`dirname "$1"`
tostripfile=`basename "$1"`
if [ -z ${tos...
How to get the path of the batch script in Windows?
...move the final backslash, you can use the :n,m substring syntax, like so:
SET mypath=%~dp0
echo %mypath:~0,-1%
I don't believe there's a way to combine the %0 syntax with the :~n,m syntax, unfortunately.
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How to make my custom type to work with “range-based for loops”?
Like many people these days I have been trying the different features that C++11 brings. One of my favorites is the "range-based for loops".
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