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JavaScript OR (||) variable assignment explanation
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Just mind the 'gotcha' which is that the last one will always get assigned even if they're all undefined, null or false. Setting something you know isn't false, null, or undefined at the end of the chain is a good way to signal nothing was found.
– ...
Difference between Build Solution, Rebuild Solution, and Clean Solution in Visual Studio?
...ll clean and then build the solution from scratch, ignoring anything it's done before. The difference between this and "Clean, followed by Build" is that Rebuild will clean-then-build each project, one at a time, rather than cleaning all and then building all.
Clean solution will remove the build ar...
Pass Variables by Reference in Javascript
...to, so I want to put them in a for loop and perform the operations to each one.
15 Answers
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File name? Path name? Base name? Naming standard for pieces of a path
...tive path
G) C:\users\OddThinking\Documents\My Source\Widget\foo.src
one node of the tree
no convention, maybe a simple directory
H) C:\users\OddThinking\Documents\My Source\Widget\foo.src
dir name
I) C:\users\OddThinking\Documents\My Source\Widget\foo.src
full/absolute path
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CSS selector for first element with class
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This is one of the most well-known examples of authors misunderstanding how :first-child works. Introduced in CSS2, the :first-child pseudo-class represents the very first child of its parent. That's it. There's a very common misconc...
Multiple linear regression in Python
...,1,2,5,6,7,8,9,7,8,7,8,7,7,7,7,7,7,6,6,4,4,4]
]
def reg_m(y, x):
ones = np.ones(len(x[0]))
X = sm.add_constant(np.column_stack((x[0], ones)))
for ele in x[1:]:
X = sm.add_constant(np.column_stack((ele, X)))
results = sm.OLS(y, X).fit()
return results
Result:
prin...
Optimizing away a “while(1);” in C++0x
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Does someone have a good explanation of why this was necessary to allow?
Yes, Hans Boehm provides a rationale for this in N1528: Why undefined behavior for infinite loops?, although this is WG14 document the rationale applies to C++...
jQuery get specific option tag text
... @Kevin, in that case, you might want to use the answer below this one. $('#list option:selected').text()
– nickf
Apr 5 '11 at 16:10
6
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NPM modules won't install globally without sudo
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One small detail to add is that you have to make the ~/npm directory yourself. Else, npm will exit with a ENOENT errors.
– Jason Farnsworth
Oct 3 '14 at 21:56
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How to set radio button checked as default in radiogroup?
...do that without ids of your buttons, but please not by using setChecked() One way would be radiogroup.check(((RadioButton)radioGroup.getChildAt(INDEX)).getId()) or something like that
– Sprigg
Apr 29 '13 at 13:05
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