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Why use 'git rm' to remove a file instead of 'rm'?
...m, you will need to follow it up with git add <fileRemoved>. git rm does this in one step.
You can also use git rm --cached which will remove the file from the index (staging it for deletion on the next commit), but keep your copy in the local file system.
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Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...t non-blocking I/O would be faster than blocking I/O. For example in this document .
9 Answers
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Trying to mock datetime.date.today(), but not working
...ithin your today() will datetime.date.today be a different function, which doesn't appear to be what you want.
What you really want seems to be more like this:
@mock.patch('datetime.date.today')
def test():
datetime.date.today.return_value = date(2010, 1, 1)
print datetime.date.today()
U...
How do I set the offset for ScrollSpy in Bootstrap?
... Thanks for the answer. Took me quite a while to realise that offset does not affect scrolling. This means anybody using a fixed-top needs to manually adjust in this manner.
– Brian Smith
Aug 6 '12 at 10:49
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Does “git fetch --tags” include “git fetch”?
... addition to other references.
So change the semantics of this option to do the latter.
If a user wants to fetch only tags, then it is still possible to specifying an explicit refspec:
git fetch <remote> 'refs/tags/*:refs/tags/*'
Please note that the documentation prior to 1.8.0....
How to take screenshot with Selenium WebDriver
Does anyone know if it's possible to take a screenshot using Selenium WebDriver? (Note: Not Selenium RC)
45 Answers
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How to set up a PostgreSQL database in Django
...
You need to install psycopg2 Python library.
Installation
Download http://initd.org/psycopg/, then install it under Python PATH
After downloading, easily extract the tarball and:
$ python setup.py install
Or if you wish, install it by either easy_install or pip.
(I prefer to us...
How do I check if a variable exists in a list in BASH
...ho 'yes' || echo 'no'. it's correct assuming space is the separator and $x doesn't contain space
– Tianren Liu
Apr 5 '16 at 21:47
...
Completion block for popViewController
...r two years ago, however this answer is incomplete.
There is no way to do what you're wanting out-of-the-box
This is technically correct because the UINavigationController API doesn't offer any options for this. However by using the CoreAnimation framework it's possible to add a completion blo...
Is there a performance difference between a for loop and a for-each loop?
...for iterating over collections and arrays
for (Element e : elements) {
doSomething(e);
}
When you see the colon (:), read it as
“in.” Thus, the loop above reads as
“for each element e in elements.” Note
that there is no performance penalty
for using the for-each loop, even ...