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Extending an Object in Javascript
... I have one question: how is the Person() constructor being called when you do new Robot()? It seems to me that you should call that base class constructor instead of doing this.name = name; in the Robot() constructor...
– Alexis Wilke
Apr 7 '14 a...
How to compare variables to undefined, if I don’t know whether they exist? [duplicate]
...s a string, and doesn't generate an error if the variable doesn't exist at all.
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Is there any performance reason to declare method parameters final in Java?
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I have seen Sun's compiler emit marginally shorter bytecode when the only difference between the two methods has been the "finality" of local variables. Micro-optimizations are a real thing, and compilers do actually make them. What really matters, of course, is ...
Is it good style to explicitly return in Ruby?
...d
Was this meant to be a function that returned a value, or not? It's really hard to say what the developer meant, as it both assigns the instance variable, AND returns the value assigned as well.
Suppose much later, another programmer (perhaps not that familiar with how Ruby does returns based ...
Counting inversions in an array
...m to do the following: Given array A[1... n] , for every i < j , find all inversion pairs such that A[i] > A[j] . I'm using merge sort and copying array A to array B and then comparing the two arrays, but I'm having a difficult time seeing how I can use this to find the number of inversions...
Initial bytes incorrect after Java AES/CBC decryption
...hought of making a fully functional code.
Hope this will be useful to you all:
To compile you need additional Apache Commons Codec jar, which is available here:
http://commons.apache.org/proper/commons-codec/download_codec.cgi
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
i...
Check if checkbox is checked with jQuery
...here is more than one checkbox with that class name. The is(':checked') really only works on one element.
– John Boker
Apr 17 '13 at 12:59
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Cannot set boolean values in LocalStorage?
...ber or a boolean, the operands are converted to numbers if possible - I totally didn't realize that. I thought if one were a string, the other was cast to a string. Cheers (+1).
– Andy E
Jul 16 '10 at 9:01
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Read binary file as string in Ruby
...g it as a one-liner solution (like so many things on stackoverflow)? After all, it works, and the name for these functions were just an arbitrary choice of the ruby library designers. If only we had some language with synonyms... that still somehow knows exactly what we want in edge cases/ambiguous ...
Branch from a previous commit using Git
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@MattFenwick Git will allow you to use shortened hashes everywhere a hash is allowed, as long as the shortened hash is ''unique'' in the repository. So if it didn’t work, try adding another character from the hash.
– poke
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