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jQuery map vs. each
...her hand takes an array, and returns a new array with each element changed by the function. This:
function squared() {
return this * this;
}
var s = $([5, 4, 3, 2, 1]).map(squared);
would result in s being [25, 16, 9, 4, 1].
...
Why is using 'eval' a bad practice?
... that 2 and 4 are the first two. It's only insecure if you are surrounded by evil sociopaths who are looking for ways to subvert your application.
– S.Lott
Dec 2 '09 at 15:41
53
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On localhost, how do I pick a free port number?
...d CATCH EXCEPTIONS. That is how you will know if a port is unusable (used by another process, in other words) on your computer.
However, in your case, you shouldn't have a problem using a single hard-coded port for your listener, as long as you print an error message if the bind fails.
Note als...
How can I have two fixed width columns with one flexible column in the center?
...ight {
flex-basis: 230px;
flex-shrink: 0;
}
OR, as recommended by the spec:
.left, .right {
flex: 0 0 230px; /* don't grow, don't shrink, stay fixed at 230px */
}
7.2. Components of
Flexibility
Authors are encouraged to control flexibility using the flex shorthand
r...
Pipe to/from the clipboard in Bash script
.../clipboard, and forces to install either xclip either gpm which is missing by default at least in Kubuntu (I guess in most other distros too).
– Hi-Angel
Sep 4 '14 at 10:18
...
Is 161803398 A 'Special' Number? Inside of Math.Random()
... be found here Note, that this is not actually a research paper (as stated by Math), this is just a master degree thesis.
People in cryptography like to use irrational number (pi, e, sqrt(5)) because there is a conjecture that digits of such numbers appears with equal frequency and thus have high e...
How to serve an image using nodejs
...ver 5 years since this question was asked there is only one correct answer by generalhenry but even though that answer has no problems with the code, it seems to have some problems with reception. It was commented that it "doesn't explain much other than how to rely on someone else to get the job do...
Two way sync with rsync
...asks what to do when files are different, but you can automate the process by using the following which accepts default (nonconflicting) options:
unison -auto dirA/ dirB/
unison -batch dirA/ dirB/ asks no questions at all, and writes to output how many files were ignored (because they conflicted)....
How to visualize an XML schema? [closed]
...mat from an XML Schema Definition. The generated SVG file can be displayed by a modern web browser where the user can expand and collapse the tree by mouse clicking.
Here is an example of a generated diagram
http://xsdvi.sourceforge.net/ipo.svg
The software can be downloaded from
http://sourcefo...
Extracting an attribute value with beautifulsoup
...above code work in this case? I thought you would have to access the value by doing output = inputTag[0].contents
– Seth
Apr 11 '10 at 23:31
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