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Sleep Command in T-SQL?
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Callum Watkins
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answered Mar 20 '09 at 3:41
Sam SaffronSam Saffron
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Rails auto-assigning id that already exists
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answered Jun 17 '12 at 4:43
Dondi Michael StromaDondi Michael Stroma
4,2601313 silver badges1919 bronze badges
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How can I add a boolean value to a NSDictionary?
... radiovisual
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answered May 24 '09 at 14:44
harmsharms
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What events does an fire when it's value is changed?
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73
change would be the event that is fired when the field's value changes.
I think the HTML5 event...
How do you get the magnitude of a vector in Numpy?
...ray -- say x.norm() -- but oh well).
import numpy as np
x = np.array([1,2,3,4,5])
np.linalg.norm(x)
You can also feed in an optional ord for the nth order norm you want. Say you wanted the 1-norm:
np.linalg.norm(x,ord=1)
And so on.
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How to use chrome web inspector to view hover code
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Guido van Rossum
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answered Jul 21 '11 at 15:30
Travis NorthcuttTravis Northcutt
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Using do block vs braces {}
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do..end syntax. Consider the following
two snippets of code:
1.upto 3 do |x|
puts x
end
1.upto 3 { |x| puts x }
# SyntaxError: compile error
Second example only works when parentheses is used, 1.upto(3) { |x| puts x }
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Using Core Data, iCloud and CloudKit for syncing and backup and how it works together
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183
It's like this:
Core Data on its own, is completely local and does not automatically work with...
What are the differences between .so and .dylib on osx?
.... A dlopen compatibility library that worked with bundles was added in 10.3; in 10.4, dlopen was rewritten to be a native part of dyld and added support for loading (but not unloading) dylibs. Finally, 10.5 added support for using dlclose with dylibs and deprecated the dyld APIs.
On ELF systems li...