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Execute and get the output of a shell command in node.js
... Is it possible to make this function return the command's output? (That's what I was trying to do.)
– Anderson Green
Oct 17 '12 at 18:48
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Handling optional parameters in javascript
...h argument, you'd have to update your type checking every single time, and what if the fourth or consecutive are also functions?
Drawbacks:
time to refactor code
If you have no choice, you could use a function to detect whether an object is indeed a function ( see last example ).
Note: This ...
How do you UrlEncode without using System.Web?
...idual values
Here is a SO question answer that explains the difference:
What's the difference between EscapeUriString and EscapeDataString?
and recommends to use Uri.EscapeDataString() in any aspect.
share
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Is there a way to make mv create the directory to be moved to if it doesn't exist?
...far this will work in other shells, but it might give you some ideas about what to look for.
Here is an example using this technique:
$ > ls
$ > touch yourfile.txt
$ > ls
yourfile.txt
$ > mkdir --parents ./some/path/; mv yourfile.txt $_
$ > ls -F
some/
$ > ls some/path/
yourfile....
Plot two graphs in same plot in R
...t this). However, lines.function() is not defined, so lines() doesn't know what to do with a parameter of class function. lines can only deal with your data and time series objects of class ts.
– Soumendra
Jul 9 '13 at 4:17
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HashSet versus Dictionary w.r.t searching time to find if an item exists
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Contrary to what the previous comments seem to imply, yes, you should switch to HashSet because it gives you what you want: storing a set of values (as opposed to maintaining some kind of mapping). This answer indicates that there will b...
Difference between Build Solution, Rebuild Solution, and Clean Solution in Visual Studio?
What is the difference between Build Solution, Rebuild Solution, and Clean Solution in Visual Studio?
12 Answers
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How to pull a random record using Django's ORM?
... db server on the second day in production. A better way is something like what is described in Getting a random row from a relational database.
from django.db.models.aggregates import Count
from random import randint
class PaintingManager(models.Manager):
def random(self):
count = sel...
Chaining multiple MapReduce jobs in Hadoop
.... There will be a similar method in the new mapreduce API but i'm not sure what it is.
As far as removing intermediate 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...
Why do we need a pure virtual destructor in C++?
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@Motti: What is interesting here and provides more confusion is that pure virtual destructor does NOT need to be explicitely overriden in derived (and instantiated) class. In such a case the implicit definition is used :)
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