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How to reverse a 'rails generate'
...e ("p" for pretend).
If you add this to the command it will simply do a "test" run and show you what files will be deleted without actually deleting them.
$ rails d controller welcome -p
remove app/controllers/welcome_controller.rb
invoke erb
remove app/views/welcome
invoke test_un...
What is the difference between Strategy pattern and Dependency Injection?
...nt injection is not widespread and mostly used in the context of automated testing only.
Strategy focuses on intent and encourages you to create an interface with different implementations that obey the same behavioral contract. DI is more about just having an implementation of some behavior and pr...
Adding information to an exception?
...at %s' % arg1)
bar('arg1')
Traceback (most recent call last):
File "test.py", line 13, in <module>
bar('arg1')
File "test.py", line 11, in bar
raise type(e)(e.message + ' happens at %s' % arg1)
IOError: Stuff happens at arg1
Update 1
Here's a slight modification that preser...
How to test if a double is an integer
...
In Sonar, this produces an issue "Equality tests should not be made with floating point values."
– Julio D
Jul 12 '17 at 9:56
...
Can an interface extend multiple interfaces in Java?
...same name and signature?
There is a tricky point:
interface A {
void test();
}
interface B {
void test();
}
class C implements A, B {
@Override
public void test() {
}
}
Then single implementation works for both :).
Read my complete post here:
http://codeinventions...
Which version of Python do I have installed?
...-2.7.6/Lib/site.pyc
/root/Python-2.7.6/Lib/site.pyo
/root/Python-2.7.6/Lib/test/test_site.py
/usr/lib/python2.6/site-packages/site.py
/usr/lib/python2.6/site-packages/site.pyc
/usr/lib/python2.6/site-packages/site.pyo
/usr/lib64/python2.6/site.py
/usr/lib64/python2.6/site.pyc
/usr/lib64/python2.6/si...
Best way to alphanumeric check in JavaScript
...
/^[a-z0-9]+$/i.test( TCode )
– Alex V
Oct 14 '13 at 18:12
3
...
Android Webview - Webpage should fit the device screen
... work anymore. I'm the only one with this problem?
– testing
Mar 10 '16 at 9:42
@testing did you get any solution of i...
Update value of a nested dictionary of varying depth
...! I figured someone would would have a better way to handle the isinstance test, but thought I'd take a stab at it.
– FMc
Jul 13 '10 at 2:58
7
...
An “and” operator for an “if” statement in Bash
...al is true if the job's return value is 0 or false otherwise).
For trivial tests, there is the test program (man test).
As some find lines like if test -f filename; then foo bar; fi, etc. annoying, on most systems you find a program called [ which is in fact only a symlink to the test program. When ...