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Is a Java hashmap search really O(1)?
I've seen some interesting claims on SO re Java hashmaps and their O(1) lookup time. Can someone explain why this is so? Unless these hashmaps are vastly different from any of the hashing algorithms I was bought up on, there must always exist a dataset that contains collisions.
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Detect iPad users using jQuery?
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317
iPad Detection
You should be able to detect an iPad user by taking a look at the userAgent pro...
How do I exchange keys with values in a dictionary?
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17 Answers
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Change URL parameters
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114
I've extended Sujoy's code to make up a function.
/**
* http://stackoverflow.com/a/10997390/...
What's the difference between lists and tuples?
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1032
Apart from tuples being immutable there is also a semantic distinction that should guide thei...
Building executable jar with maven?
...t the answer given in the question you mentioned is just wrong (UPDATE - 20101106: someone fixed it, this answer refers to the version preceding the edit) and this explains, at least partially, why you run into troubles.
It generates two jar files in logmanager/target: logmanager-0.1.0.jar, and lo...
Optimum way to compare strings in JavaScript? [duplicate]
...tring_a.localeCompare(string_b);
/* Expected Returns:
0: exact match
-1: string_a < string_b
1: string_a > string_b
*/
Further Reading:
MDN: String.prototype.localeCompare
Stack Overflow - Is there a JavaScript strcmp()?
Tutorials Point: JavaScript String - localeCompare() Metho...
Compiling simple Hello World program on OS X via command line
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184
Try
g++ hw.cpp
./a.out
g++ is the C++ compiler frontend to GCC.
gcc is the C compiler front...
How to compute the similarity between two text documents?
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10 Answers
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