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How to get the original value of an attribute in Rails
... original value that an ActiveRecord attribute (=the value that was loaded from the database)?
4 Answers
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lexers vs parsers
Are lexers and parsers really that different in theory?
5 Answers
5
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How do you run your own code alongside Tkinter's event loop?
...tion for the after method:
def after(self, ms, func=None, *args):
"""Call function once after given time.
MS specifies the time in milliseconds. FUNC gives the
function which shall be called. Additional parameters
are given as parameters to the function call. Return
identifier...
How to get everything after a certain character?
...te fast.
$s = '233718_This_is_a_string';
$firstPart = strtok( $s, '_' );
$allTheRest = strtok( '' );
Empty string like this will force the rest of the string to be returned.
NB if there was nothing at all after the '_' you would get a FALSE value for $allTheRest which, as stated in the document...
Grep not as a regular expression
...as grep -F. Direct invocation as fgrep is
deprecated, but is provided to allow historical applications that rely
on them to run unmodified.
For the complete reference, check:
https://www.gnu.org/savannah-checkouts/gnu/grep/manual/grep.html
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How to get process ID of background process?
...olling terminal. A script will not necessarily have a terminal attached at all so job control will not necessarily be available.
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How to distinguish between left and right mouse click with jQuery
... Keep scrolling down and make sure to read @JeffHines's answer. Basically, jQuery has this built-in as the event 'contextmenu'.
– jpadvo
Dec 17 '11 at 20:30
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git error: failed to push some refs to remote
...e GitHub repo has seen new commits pushed to it, while you were working locally, I would advise using:
git pull --rebase
git push
The full syntax is:
git pull --rebase origin master
git push origin master
With Git 2.6+ (Sept. 2015), after having done (once)
git config --global pull.rebase tru...
Delete multiple remote branches in git
...ushed over 150 of his local branches to our central repo. Thankfully, they all have the same prefix. Using that prefix, is there a git command or cool little shell script I can use that will delete all of those at once?
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Easy way to test a URL for 404 in PHP?
...hat sometimes the URL's that I feed into my code return 404, which gums up all the rest of my code.
15 Answers
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