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unique object identifier in javascript
I need to do some experiment and I need to know some kind of unique identifier for objects in javascript, so I can see if they are the same. I don't want to use equality operators, I need something like the id() function in python.
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What is SOA “in plain english”? [closed]
... answered Jan 8 '10 at 9:20
KB22KB22
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Can someone give an example of cosine similarity, in a very simple, graphical way?
Cosine Similarity article on Wikipedia
10 Answers
10
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In Functional Programming, what is a functor?
...t the authors typically assume the reader already understands the term. Looking around on the web has provided either excessively technical descriptions (see the Wikipedia article ) or incredibly vague descriptions (see the section on Functors at this ocaml-tutorial website ).
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strdup() - what does it do in C?
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Exactly what it sounds like, assuming you're used to the abbreviated way in which C and UNIX assigns words, it duplicates strings :-)
Keeping in mind it's actually not part of the ISO C standard itself(a) (it's a POSIX thing), it's effectively doing...
How to exclude a module from a Maven reactor build?
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The easiest might be to use profiles like this:
<project>
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<modules>
<module>common</module>
<module>foo</module>
<module>bar</module>
<modules>
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<profiles>
<profile>...
What is the “hasClass” function with plain JavaScript?
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You can check whether element.className matches /\bthatClass\b/.
\b matches a word break.
Or, you can use jQuery's own implementation:
var className = " " + selector + " ";
if ( (" " + element.className + " ").replace(/[\n\t]/g, " ").i...
Java NIO FileChannel versus FileOutputstream performance / usefulness
... same level, also many times the FileChannel way is slower. Can I please know more details comparing these two methods. Here is the code I used, the file that I am testing with is around 350MB . Is it a good option to use NIO based classes for File I/O, if I am not looking at random access or oth...
Meaning of tilde in Linux bash (not home directory)
First off, I know that ~/ is the home directory. CDing to ~ or ~/ takes me to the home directory.
8 Answers
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Why can't (or doesn't) the compiler optimize a predictable addition loop into a multiplication?
... if (condition(data[c]))
sum += data[c];
wouldn't. It's kosher here, since the condition ensures all data[c] that are added have the same sign, so if one overflows, both do.
I wouldn't be too sure that the compiler took that into account, though (@Mysticial, could you try with a ...