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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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Delete an element from a dictionary
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The del statement removes an element:
del d[key]
However, this mutates the existing dictionary so the contents of the dictionary changes for anybody else who has a reference to the same instance. To return a new dictionary, make a copy of the dictionary:
def removek...
Using the “start” command with parameters passed to the started program
...In other words, give it an empty title before the name of the program to fake it out.
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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...
Ruby on Rails generates model field:type - what are the options for field:type?
...new model and forget the syntax for referencing another model's ID. I'd look it up myself, but I haven't figured out, among all my Ruby on Rails documentation links, how to find the definitive source.
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Ruby convert Object to Hash
Let's say I have a Gift object with @name = "book" & @price = 15.95 . What's the best way to convert that to the Hash {name: "book", price: 15.95} in Ruby, not Rails (although feel free to give the Rails answer too)?
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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>...
Remove or uninstall library previously added : cocoapods
I added an external framework via cocoapods into my iOS application. How can i remove that library from the project?
6 Answ...
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...
What is SOA “in plain english”? [closed]
... answered Jan 8 '10 at 9:20
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