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nil detection in Go
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183
The compiler is pointing the error to you, you're comparing a structure instance and nil. They'r...
Calling a function of a module by using its name (a string)
...attr(foo, 'bar')
result = method_to_call()
You could shorten lines 2 and 3 to:
result = getattr(foo, 'bar')()
if that makes more sense for your use case.
You can use getattr in this fashion on class instance bound methods, module-level methods, class methods... the list goes on.
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Chrome: timeouts/interval suspended in background tabs?
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GG.
16.5k99 gold badges6666 silver badges113113 bronze badges
answered May 17 '11 at 14:44
pimvdbpimvdb
137k6767 gold bad...
How to ssh to vagrant without actually running “vagrant ssh”?
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Paul Chernoch
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answered Oct 17 '12 at 16:04
Stefano PalazzoStefano Palazzo
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Broken references in Virtualenvs
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375
I found the solution to the problem here, so all credit goes to the author.
The gist is that ...
Redefining NULL
...casting a 0 constant to a pointer value must result in a NULL pointer (§6.3.2.3/3), and evaluating the null pointer as a boolean must be false. This can be a bit awkward if you really do want a zero address, and NULL is not the zero address.
Nevertheless, with (heavy) modifications to the compiler...
What parameters should I use in a Google Maps URL to go to a lat-lon?
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53
In May 2017 Google announced the Google Maps URLs API that allows to construct universal cross-p...
How to concatenate stdin and a string?
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edited Dec 14 '12 at 18:32
answered Dec 14 '12 at 18:24
s...
How to reset sequence in postgres and fill id column with new data?
...ws. I need to reset sequence and reassign id column with new values (1, 2, 3, 4... etc...). Is any easy way to do that?
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