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Jinja2 template variable if None Object set a default value
How to make a variable in jijna2 default to "" if object is None instead of doing something like this?
9 Answers
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How is Racket different from Scheme?
...ng. Also, Racket does have the more restricted letrec -- for example, the one in the r5rs language; it's an intentional choice to use the letrec*-like version in the default language.
– Eli Barzilay
Jul 31 '10 at 15:57
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Setting PayPal return URL and making it auto return?
... Stricker How can we setup return url for 2 different sites? like if i use one paypal account for 2 websites, but i can add only one URL as return url using your steps. how can i use that for 2 sites?
– Gaurav
Sep 2 '15 at 17:32
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How do I clone a single branch in Git?
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Note: the git1.7.10 (April 2012) actually allows you to clone only one branch:
# clone only the remote primary HEAD (default: origin/master)
git clone <url> --single-branch
# as in:
git clone <url> --branch <branch> --single-branch [<folder>]
You can see it...
Making 'git log' ignore changes for certain paths
How can I make git log only show commits that changed files other than the ones I specify?
3 Answers
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Ruby - test for array
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Instead of testing for an Array, just convert whatever you get into a one-level Array, so your code only needs to handle the one case.
t = [*something] # or...
t = Array(something) # or...
def f *x
...
end
Ruby has various ways to harmonize an API which can take an object or an Array...
Why can't I save CSS changes in Firebug? [closed]
...it works great highlighting the changed lines. Just click Save and you're done! :)
Here's a video explaining this and much more: Google I/O 2011: Chrome Dev Tools Reloaded
I hope it helps if it doesn't matter to you changing browser while editing your CSS files. I made the change already for now, ...
How to print number with commas as thousands separators?
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Great thanks. For money amounts, with 2 decimal places - "{:,.2f}".format(value)
– dlink
Mar 21 '16 at 18:44
3
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What is the global interpreter lock (GIL) in CPython?
...r weight" than creating multiple threads, but if you really need get work done in parallel, in python, it is an option.
– AJNeufeld
Jun 30 '16 at 19:25
1
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How can I break up this long line in Python?
... is to join string literals together implicitly by making them adjacent to one another:
("This is the first line of my text, "
"which will be joined to a second.")
Or with line ending continuations, which is a little more fragile, as this works:
"This is the first line of my text, " \
"which wil...