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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...
Advantages of Binary Search Trees over Hash Tables
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One advantage that no one else has pointed out is that binary search tree allows you to do range searches efficiently.
In order to illustrate my idea, I want to make an extreme case. Say you want to get all the elements whos...
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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Chaining multiple MapReduce jobs in Hadoop
... data after a job has finished you can do this in your code. The way i've done it before is using something like:
FileSystem.delete(Path f, boolean recursive);
Where the path is the location on HDFS of the data. You need to make sure that you only delete this data once no other job requires it.
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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]
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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...
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...
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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What is the difference between MacVim and regular Vim?
...seen many people recommend running MacVim over Vim in the terminal. Can anyone tell me what differences there are between MacVim and regular Vim?
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