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What does a tilde do when it precedes an expression?
...ntation of the IEEE 754 float (how JavaScript treats numbers) would be...
0011 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
So ~ converts its operand to a 32 bit integer (bitwise operators in JavaScript do that)...
0000 0000 0000 0000 0000 0000 0000 0001
If it wer...
find -exec a shell function in Linux?
...t inherit them:
export -f dosomething
find . -exec bash -c 'dosomething "$0"' {} \;
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Detect if a NumPy array contains at least one non-numeric value?
...ng and will work regardless of shape.
numpy.isnan(myarray).any()
Edit: 30x faster:
import timeit
s = 'import numpy;a = numpy.arange(10000.).reshape((100,100));a[10,10]=numpy.nan'
ms = [
'numpy.isnan(a).any()',
'any(numpy.isnan(x) for x in a.flatten())']
for m in ms:
print " %.2f s" ...
sometimes my file just freezes in my vi |vim, what happened?
...trl-S from freezing your screen, but it's not working on my local Solaris 10 login.
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form_for but to post to a different action
...
AustinAustin
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15
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Strip html from string Ruby on Rails
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140
There's a strip_tags method in ActionView::Helpers::SanitizeHelper:
http://api.rubyonrails.org/...
What is string_view?
...BKerrek SB
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19
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Convert char to int in C#
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150
Interesting answers but the docs say differently:
Use the GetNumericValue methods to
conve...
Python: most idiomatic way to convert None to empty string?
...
answered Jun 23 '09 at 19:28
TriptychTriptych
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What is the Objective-C equivalent for “toString()”, for use with NSLog?
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250
It is the description instance method, declared as:
- (NSString *)description
Here's an examp...