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Delete/Reset all entries in Core Data?
Do you know of any way to delete all of the entries stored in Core Data? My schema should stay the same; I just want to reset it to blank.
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List all virtualenv
In virtualenvwrapper, is there a simple way to list all virtualenv on my machine?
8 Answers
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Remove all special characters from a string in R?
How to remove all special characters from string in R and replace them with spaces ?
3 Answers
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How can I find all matches to a regular expression in Python?
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Use re.findall or re.finditer instead.
re.findall(pattern, string) returns a list of matching strings.
re.finditer(pattern, string) returns an iterator over MatchObject objects.
Example:
re.findall( r'all (.*?) are', 'all cats are s...
Delete all lines beginning with a # from a file
All of the lines with comments in a file begin with # . How can I delete all of the lines (and only those lines) which begin with # ? Other lines containing # , but not at the beginning of the line should be ignored.
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Colspan all columns
How can I specify a td tag should span all columns (when the exact amount of columns in the table will be variable/difficult to determine when the HTML is being rendered)? w3schools mentions you can use colspan="0" , but it doesn't say exactly what browsers support that value (IE 6 is in our li...
Uninstall / remove a Homebrew package including all its dependencies
I have a Homebrew formula that I wish to uninstall/remove along with all its dependencies, skipping packages whom other packages depend upon (a.k.a. Cascading package removal in Package manager parlance).
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How to reset a single table in rails?
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A lot of people (like me) come here to find how to delete all the data in the table. Here you go:
$ rails console
> ModelName.delete_all
or
> ModelName.destroy_all
destroy_all checks dependencies and callbacks, and takes a little longer.
delete_all is a straight SQL que...
How to get a list of all files that changed between two Git commits?
Due to bureaucracy, I need to get a list of all changed files in my repository for a report (I started with existing source code).
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List of installed gems?
Is there a Ruby method I can call to get the list of installed gems?
11 Answers
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