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What does ~~ (“double tilde”) do in Javascript?
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How this is the NOT of the NOT
The number -43.2, for example is:
-43.210 = 111111111111111111111111110101012
as a signed (two's complement) 32-bit binary number. (JavaScript ignores what is after the decimal point.) Inverting the bits gives:
NOT -4310 = 000000000000000000000000001010102 = 421...
.NET String.Format() to add commas in thousands place for a number
... decimal places.
– Greg Bray
Nov 5 '10 at 3:50
12
How can I replicate the "N" specifier but with ...
Rails: how do I validate that something is a boolean?
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answered Aug 31 '10 at 10:50
BudgieBudgie
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jQuery clone() not cloning event bindings, even with on()
...too!
– Richard de Wit
May 24 '13 at 10:13
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How to replace spaces in file names using a bash script
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answered Apr 25 '10 at 19:37
Paused until further notice.Paused until further notice.
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Can't install PIL after Mac OS X 10.9
I've just updated my Mac OS to 10.9 and I discovered that some (all?) of my Python modules are not here anymore, especially the Image one.
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Is there an easy way to pickle a python function (or otherwise serialize its code)?
...string)
func = types.FunctionType(code, globals(), "some_func_name")
func(10) # gives 100
A few caveats:
marshal's format (any python bytecode for that matter) may not be compatable between major python versions.
Will only work for cpython implementation.
If the function references globals (in...
How to find if a given key exists in a C++ std::map
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10
@tomsmeding There is only a single key in a std::map. So count will either be 0 or 1. Is one more efficient than the other?
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How to generate an openSSL key using a passphrase from the command line?
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210
If you don't use a passphrase, then the private key is not encrypted with any symmetric cipher ...
Check to see if a string is serialized?
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