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Xcode is not currently available from the Software Update server
...orked for me to fix this issue in OSX Mojave too
– kb_
Oct 31 '18 at 18:59
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Ruby: How to turn a hash into HTTP parameters?
...uery
# => "a=a&b[c]=c&b[d]"
The gem is 'addressable'
gem install addressable
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You can't specify target table for update in FROM clause
... absolutely fine. DELETE FROM t WHERE tableID NOT IN (SELECT viewID FROM t_view); Also I recommend running OPTIMIZE TABLE t; afterwards to reduce the size of the table.
– CodeX
Oct 13 '16 at 11:36
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What is the difference between Ruby 1.8 and Ruby 1.9
... Sam's slides. The slideshow is less overwhelming to review, but having it all laid out in a list like this is also helpful.
Ruby 1.9 - Major Features
Performance
Threads/Fibers
Encoding/Unicode
gems is (mostly) built-in now
if statements do not introduce scope in Ruby.
What's changed?
Single ...
How do I install from a local cache with pip?
I install a lot of the same packages in different virtualenv environments. Is there a way that I can download a package once and then have pip install from a local cache?
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@RequestParam vs @PathVariable
...re interesting annotation:
@MatrixVariable
http://localhost:8080/spring_3_2/matrixvars/stocks;BT.A=276.70,+10.40,+3.91;AZN=236.00,+103.00,+3.29;SBRY=375.50,+7.60,+2.07
And the Controller method for it
@RequestMapping(value = "/{stocks}", method = RequestMethod.GET)
public String showPortfo...
How can I convert an RGB image into grayscale in Python?
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SciPy's image I/O is literally PIL/Pillow. Hence, testing SciPy is effectively retesting PIL/Pillow with negligible overhead introduced by SciPy's wrapper functions. It would have been much more useful to substitute OpenCV (which does not leverage PIL...
PHP global in functions
...ngletons, registries, constants). You do not want to use them. A function call should not have to rely on anything outside, e.g.
function fn()
{
global $foo; // never ever use that
$a = SOME_CONSTANT // do not use that
$b = Foo::SOME_CONSTANT; // do not use that unl...
Close and Dispose - which to call?
...and Dispose in the case of SqlConnectionObject is:
An application can call Close more
than one time. No exception is
generated.
If you called Dispose method
SqlConnection object state will be
reset. If you try to call any
method on disposed SqlConnection
object, you will receive...
How do I capture the output into a variable from an external process in PowerShell?
...nd cannot get it to work. Is "Shell" a powershell keyword? So we don't actually use the Start-Process cmdlet? Can you please give a concrete example please (i.e. replace "Shell" and/or "command" with a real example).
– deadlydog
Feb 22 '13 at 23:45
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