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In Python, how do I create a string of n characters in one line of code?
...gives you "xxxxxxxxxx"
And if you want something more complex, like n random lowercase letters, it's still only one line of code (not counting the import statements and defining n):
from random import choice
from string import ascii_lowercase
n = 10
string_val = "".join(choice(ascii_lowercase) f...
Determine if variable is defined in Python [duplicate]
How do you know whether a variable has been set at a particular place in the code at runtime? This is not always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or...
Filtering for empty or NULL names in a queryset
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You could do this:
Name.objects.exclude(alias__isnull=True)
If you need to exclude null values and empty strings, the preferred way to do so is to chain together the conditions like so:
Name.objects.exclude(alias__isnull=True).excl...
Undoing a 'git push'
... :alpha-0.3.0
git push origin cc4b63bebb6:refs/heads/alpha-0.3.0
If this doesn't work - perhaps because you have receive.denyDeletes set, then you have to have direct access to the repository. In the remote repository, you then have to do something like the following plumbing command.
git update-...
partial string formatting
Is it possible to do partial string formatting with the advanced string formatting methods, similar to the string template safe_substitute() function?
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Get the first key name of a javascript object [duplicate]
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In Javascript you can do the following:
Object.keys(ahash)[0];
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Disable cross domain web security in Firefox
In Firefox, how do I do the equivalent of --disable-web-security in Chrome. This has been posted a lot, but never a true answer. Most are links to add-ons (some of which don't work in the latest Firefox or don't work at all) and "you just need to enable support on the server".
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How to pass parameters on onChange of html select
... fire the event immediately after a value changes?
– doABarrelRoll721
Feb 19 '16 at 18:42
2
use t...
Search for string and get count in vi editor
...is will delete all the lines with pattern, and report how many deleted. Undo to get them back after.
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How to open a URL in a new Tab using JavaScript or jQuery? [duplicate]
How to open a URL in new tab instead of new window programatically?
6 Answers
6
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