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Abort makefile if variable not set
...essage to print.
check_defined = \
$(strip $(foreach 1,$1, \
$(call __check_defined,$1,$(strip $(value 2)))))
__check_defined = \
$(if $(value $1),, \
$(error Undefined $1$(if $2, ($2))))
And here is how to use it:
$(call check_defined, MY_FLAG)
$(call check_defined, OUT_D...
Does file_get_contents() have a timeout setting?
I am calling a series of links using the file_get_contents() method in a loop. Each link may take more than 15 minutes to process. Now, I worry about whether PHP's file_get_contents() has a timeout period?
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What does 'require: false' in Gemfile mean?
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This means install the gem, but do not call require when you start Bundler. So you will need to manually call
require "whenever"
if you want to use the library.
If you were to do
gem "whenever", require: "whereever"
then bundler would download the gem named...
MySQL “between” clause not inclusive?
...0:00. Comparing on a date range will therefore lose the last day. Either call DATE(dob) or specify the end of the day.
– wintermute92
Sep 20 '16 at 19:46
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How to prevent robots from automatically filling up a form?
...g to come up with a good enough anti-spamming mechanism to prevent automatically generated input. I've read that techniques like captcha, 1+1=? stuff work well, but they also present an extra step impeding the free quick use of the application (I'm not looking for anything like that please).
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How to make jQuery to not round value returned by .width()?
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My element has a fluid width, generally, but content that changes dynamically via AJAX. Before switching the content, I temporarily lock the dimensions of the element so my layout doesn't bounce around during the transition. I've found that using jQuery like this:
$element.width($element.width()...
What is the difference between mocking and spying when using Mockito?
...users. Read more about spying: here or in javadoc for spy(Object) method.
callRealMethod() was introduced after spy(), but spy() was left there of course, to ensure backward compatibility.
Otherwise, you're right: all the methods of a spy are real unless stubbed. All the methods of a mock are stubb...
Devise - How do I forbid certain users from signing in?
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Do it like this:
Create a column called is_active for the User model.
Then add the code below to the User model:
class User < ActiveRecord::Base
#this method is called by devise to check for "active" state of the model
def active_for_authentication?...
git: How to diff changed files versus previous versions after a pull?
...me in since I'm a new user and don't have any karma (if that is what it is called on SO). My fault =)
– cadizm
Apr 23 '12 at 18:12
3
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How to get item's position in a list?
...nge() creates a iterator. xrange() uses waaaay less memory, and the inital call is faster.
– gnud
Dec 13 '08 at 1:39
2
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